BlackTreeIndependent security intelligence
← Back to the CVE catalogue
Full vulnerability report · 2023
CVE-2023-31124High confidence

AutoTools does not set CARES_RANDOM_FILE during cross compilation

c-ares · c-ares

3.7LowCVSS 3.1
Recommended action
Scheduled

Low technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

2 current
SSA-943925 · CSAF 2.0 · revision 2 · interimSiemens ProductCERTSSA-943925: Multiple Vulnerabilities in SINEC NMS before V2.0 SP1
1 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SINEC NMS
Summary
c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARES_RANDOM_FILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand() as a fallback which could allow an attacker to take advantage of the lack of entropy by not using a CSPRNG. This issue was patched in version 1.19.1.
Remediation
Update to V2.0 SP1 or later version
SSA-806742 · CSAF 2.0 · revision 1 · interimSiemens ProductCERTSSA-806742: Multiple Vulnerabilities in SCALANCE XCM-/XRM-300 before V2.4
11 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SCALANCE XCH328 (6GK5328-4TS01-2EC2)
  • SCALANCE XCM324 (6GK5324-8TS01-2AC2)
  • SCALANCE XCM328 (6GK5328-4TS01-2AC2)
  • SCALANCE XCM332 (6GK5332-0GA01-2AC2)
  • SCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3)
  • SCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3)
  • SCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3)
  • SCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3)
  • SCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3)
  • SCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3)
  • SCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3)
Summary
c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARES_RANDOM_FILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand() as a fallback which could allow an attacker to take advantage of the lack of entropy by not using a CSPRNG. This issue was patched in version 1.19.1.
Remediation
Update to V2.4 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-35450

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Low technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARES_RANDOM_FILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand() as a fallback which could allow an attacker to take advantage of the lack of entropy by not using a CSPRNG. This issue was patched in version 1.19.1.

What

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARES_RANDOM_FILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand() as a fallback which could allow an attacker to take advantage of the lack of entropy by not using a CSPRNG. This issue was patched in version 1.19.1.

Why

The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARES_RANDOM_FILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand() as a fallback which could allow an attacker to take advantage of the lack of entropy by not using a CSPRNG. This issue was patched in version 1.19.1.

Why

The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Use of Insufficiently Random Values → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-330 ↗

CWE-330: Use of Insufficiently Random Values. The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.ILowIntegrity impact: A successful attack can cause a limited loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-330
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2023-2917Xerox FreeFlow Print Server: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um die Vertraulichkeit, Verfügbarkeit und Integrität des Systems zu gefährden.

Official advisory
BSI · German · WID-SEC-W-2023-1614Tenable Security Nessus Network Monitor: Mehrere Schwachstellen

Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in Tenable Security Nessus Network Monitor ausnutzen, um beliebigen Code auszuführen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen und Daten zu manipulieren.

Official advisory
BSI · German · WID-SEC-W-2023-1475Red Hat Enterprise Linux: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um Sicherheitsvorkehrungen zu umgehen und weitere, nicht spezifizierte Auswirkungen zu verursachen.

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0170Multiples vulnérabilités dans les produits IBM

d?id=CVE-2023-23919 Référence CVE CVE-2023-23920 https://www.cve.org/CVERecord?id=CVE-2023-23920 Référence CVE CVE-2023-23936 https://www.cve.org/CVERecord?id=CVE-2023-23936 Référence CVE CVE-2023-24807 https://www.cve.org/CVERecord?id=CVE-2023-24807 Référence CVE CVE-2023-26136 https://www.cve.org/CVERecord?id=CVE-2023-26136 Référence CVE CVE-2023-28155 https://www.cve.org/CVERecord?id=CVE-2023-28155 Référence CVE CVE-2023-28523 https://www.cve.org/CVERecord?id=CVE-2023-28523 Référence CVE CVE-2023-28526 https://www.cve.org/CVERecord?id=CVE-2023-28526 Référence CVE CVE-2023-28527 https://www.cve.org/CVERecord?id=CVE-2023-28527 Référence CVE CVE-2023-31124 https://www.cve.org/CVERecord?id=CVE-2023-31124 Référence CVE CVE-2023-31130 https://www.cve.org/CVERecord?id=CVE-2023-31130 Référence CVE CVE-2023-31147 https://www.cve.org/CVERecord?id=CVE-2023-31147 Référence CVE CVE-2023-32067 https://www.cve.org/CVERecord?id=CVE-2023-32067 Référence CVE CVE-2023-35946 https://www.cve.org/CVERecord?id=CVE-2023-35946 Référence CVE CVE-2023-35947 https://www.cve.org/CVERecord?id=CVE-2023-35947 Référence CVE CVE-2023-39410 https://www.cve.org/CVERecord?id=CVE-2023-39410 Référence CVE CVE-2024-10917 https://www.cve.org/CVERecord?id=CVE-2024-10917 Référence CVE CVE-2024-21131 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0866Multiples vulnérabilités dans les produits Juniper Networks

CVERecord?id=CVE-2018-16845 Référence CVE CVE-2019-20372 https://www.cve.org/CVERecord?id=CVE-2019-20372 Référence CVE CVE-2021-23017 https://www.cve.org/CVERecord?id=CVE-2021-23017 Référence CVE CVE-2021-3618 https://www.cve.org/CVERecord?id=CVE-2021-3618 Référence CVE CVE-2022-41741 https://www.cve.org/CVERecord?id=CVE-2022-41741 Référence CVE CVE-2022-41742 https://www.cve.org/CVERecord?id=CVE-2022-41742 Référence CVE CVE-2023-0567 https://www.cve.org/CVERecord?id=CVE-2023-0567 Référence CVE CVE-2023-0568 https://www.cve.org/CVERecord?id=CVE-2023-0568 Référence CVE CVE-2023-0662 https://www.cve.org/CVERecord?id=CVE-2023-0662 Référence CVE CVE-2023-31124 https://www.cve.org/CVERecord?id=CVE-2023-31124 Référence CVE CVE-2023-31130 https://www.cve.org/CVERecord?id=CVE-2023-31130 Référence CVE CVE-2023-31147 https://www.cve.org/CVERecord?id=CVE-2023-31147 Référence CVE CVE-2023-32067 https://www.cve.org/CVERecord?id=CVE-2023-32067 Référence CVE CVE-2023-3823 https://www.cve.org/CVERecord?id=CVE-2023-3823 Référence CVE CVE-2023-3824 https://www.cve.org/CVERecord?id=CVE-2023-3824 Référence CVE CVE-2023-44487 https://www.cve.org/CVERecord?id=CVE-2023-44487 Référence CVE CVE-2023-51385 https://www.cve.org/CVERecord?id=CVE-2023-51385 Référence CVE CVE-2024-2511 https://www.cve.org/CVERecord?id=CVE-2

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0156Multiples vulnérabilités dans les produits Tenable

/security/tns-2024-04 Référence CVE CVE-2023-0286 https://www.cve.org/CVERecord?id=CVE-2023-0286 Référence CVE CVE-2023-25194 https://www.cve.org/CVERecord?id=CVE-2023-25194 Référence CVE CVE-2023-26489 https://www.cve.org/CVERecord?id=CVE-2023-26489 Référence CVE CVE-2023-27477 https://www.cve.org/CVERecord?id=CVE-2023-27477 Référence CVE CVE-2023-27535 https://www.cve.org/CVERecord?id=CVE-2023-27535 Référence CVE CVE-2023-27536 https://www.cve.org/CVERecord?id=CVE-2023-27536 Référence CVE CVE-2023-27538 https://www.cve.org/CVERecord?id=CVE-2023-27538 Référence CVE CVE-2023-30624 https://www.cve.org/CVERecord?id=CVE-2023-30624 Référence CVE CVE-2023-31124 https://www.cve.org/CVERecord?id=CVE-2023-31124 Référence CVE CVE-2023-31130 https://www.cve.org/CVERecord?id=CVE-2023-31130 Référence CVE CVE-2023-31147 https://www.cve.org/CVERecord?id=CVE-2023-31147 Référence CVE CVE-2023-32067 https://www.cve.org/CVERecord?id=CVE-2023-32067 Référence CVE CVE-2023-35941 https://www.cve.org/CVERecord?id=CVE-2023-35941 Référence CVE CVE-2023-35942 https://www.cve.org/CVERecord?id=CVE-2023-35942 Référence CVE CVE-2023-35943 https://www.cve.org/CVERecord?id=CVE-2023-35943 Référence CVE CVE-2023-35944 https://www.cve.org/CVERecord?id=CVE-2023-35944 Référence CVE CVE-2023-35945 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0119Multiples vulnérabilités dans les produits Siemens

ecord?id=CVE-2023-30586 Référence CVE CVE-2023-30587 https://www.cve.org/CVERecord?id=CVE-2023-30587 Référence CVE CVE-2023-30588 https://www.cve.org/CVERecord?id=CVE-2023-30588 Référence CVE CVE-2023-30589 https://www.cve.org/CVERecord?id=CVE-2023-30589 Référence CVE CVE-2023-30590 https://www.cve.org/CVERecord?id=CVE-2023-30590 Référence CVE CVE-2023-30772 https://www.cve.org/CVERecord?id=CVE-2023-30772 Référence CVE CVE-2023-3090 https://www.cve.org/CVERecord?id=CVE-2023-3090 Référence CVE CVE-2023-31084 https://www.cve.org/CVERecord?id=CVE-2023-31084 Référence CVE CVE-2023-3111 https://www.cve.org/CVERecord?id=CVE-2023-3111 Référence CVE CVE-2023-31124 https://www.cve.org/CVERecord?id=CVE-2023-31124 Référence CVE CVE-2023-31130 https://www.cve.org/CVERecord?id=CVE-2023-31130 Référence CVE CVE-2023-31147 https://www.cve.org/CVERecord?id=CVE-2023-31147 Référence CVE CVE-2023-3141 https://www.cve.org/CVERecord?id=CVE-2023-3141 Référence CVE CVE-2023-31436 https://www.cve.org/CVERecord?id=CVE-2023-31436 Référence CVE CVE-2023-31489 https://www.cve.org/CVERecord?id=CVE-2023-31489 Référence CVE CVE-2023-32002 https://www.cve.org/CVERecord?id=CVE-2023-32002 Référence CVE CVE-2023-32003 https://www.cve.org/CVERecord?id=CVE-2023-32003 Référence CVE CVE-2023-32004 https://www.cve.org/CVERecord?id=CV

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0499Multiples vulnérabilités dans Tenable Nessus Network Monitor

d?id=CVE-2023-27534 Référence CVE CVE-2023-27535 https://www.cve.org/CVERecord?id=CVE-2023-27535 Référence CVE CVE-2023-27536 https://www.cve.org/CVERecord?id=CVE-2023-27536 Référence CVE CVE-2023-27538 https://www.cve.org/CVERecord?id=CVE-2023-27538 Référence CVE CVE-2023-28320 https://www.cve.org/CVERecord?id=CVE-2023-28320 Référence CVE CVE-2023-28321 https://www.cve.org/CVERecord?id=CVE-2023-28321 Référence CVE CVE-2023-28322 https://www.cve.org/CVERecord?id=CVE-2023-28322 Référence CVE CVE-2023-28484 https://www.cve.org/CVERecord?id=CVE-2023-28484 Référence CVE CVE-2023-29469 https://www.cve.org/CVERecord?id=CVE-2023-29469 Référence CVE CVE-2023-31124 https://www.cve.org/CVERecord?id=CVE-2023-31124 Référence CVE CVE-2023-31130 https://www.cve.org/CVERecord?id=CVE-2023-31130 Référence CVE CVE-2023-31147 https://www.cve.org/CVERecord?id=CVE-2023-31147 Référence CVE CVE-2023-32067 https://www.cve.org/CVERecord?id=CVE-2023-32067 Gestion détaillée du document le 30 juin 2023 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des sy

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
SINEC NMS
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
Update to V2.0 SP1 or later version
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 25 May 2023 · Last source change 13 Feb 2025, 16:49 UTC · CWE-330 · Use of Insufficiently Random Values

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-35450
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2023-35450↗Vendor CSAF · Siemens ProductCERT↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-31124 · cve.blacktree.nl