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Full vulnerability report · 2022
CVE-2022-23181High confidence

Local privilege escalation with FileStore

Apache Software Foundation · Apache Tomcat

7.0HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
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-2022-0937

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 actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

The fix for bug CVE-2020-9484 introduced a time of check, time of use vulnerability into Apache Tomcat 10.1.0-M1 to 10.1.0-M8, 10.0.0-M5 to 10.0.14, 9.0.35 to 9.0.56 and 8.5.55 to 8.5.73 that allowed a local attacker to perform actions with the privileges of the user that the Tomcat process is using. This issue is only exploitable when Tomcat is configured to persist sessions using the FileStore.

What

The fix for bug CVE-2020-9484 introduced a time of check, time of use vulnerability into Apache Tomcat 10.1.0-M1 to 10.1.0-M8, 10.0.0-M5 to 10.0.14, 9.0.35 to 9.0.56 and 8.5.55 to 8.5.73 that allowed a local attacker to perform actions with the privileges of the user that the Tomcat process is using. This issue is only exploitable when Tomcat is configured to persist sessions using the FileStore.

Why

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

The fix for bug CVE-2020-9484 introduced a time of check, time of use vulnerability into Apache Tomcat 10.1.0-M1 to 10.1.0-M8, 10.0.0-M5 to 10.0.14, 9.0.35 to 9.0.56 and 8.5.55 to 8.5.73 that allowed a local attacker to perform actions with the privileges of the user that the Tomcat process is using. This issue is only exploitable when Tomcat is configured to persist sessions using the FileStore.

Why

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

How

An attacker operating through local access may attempt exploitation with low privileges. 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
local access → Time-of-check Time-of-use (TOCTOU) Race Condition → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
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-367 ↗

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

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

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

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
CWE-367
A

Official authority intelligence

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

BSI · German · WID-SEC-W-2024-1238HPE HP-UX: Mehrere Schwachstellen

Ein anonymer oder lokaler Angreifer kann mehrere Schwachstellen in HPE HP-UX Tomcat Servlet Engine ausnutzen, um Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand zu verursachen, vertrauliche Informationen offenzulegen oder Dateien zu manipulieren.

Official advisory
BSI · German · WID-SEC-W-2023-1031Oracle Retail Applications: Mehrere Schwachstellen

Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Retail Applications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

Official advisory
BSI · German · WID-SEC-W-2022-0607Red Hat FUSE: Mehrere Schwachstellen

Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in Red Hat FUSE ausnutzen, um vertrauliche Informationen offenzulegen, beliebigen Code auszuführen, einen Denial of Service Zustand herbeizuführen, Sicherheitsmaßnahmen zu umgehen, Daten und Informationen zu manipulieren und seine Privilegien zu erweitern.

Official advisory
BSI · German · WID-SEC-W-2022-0432Xerox FreeFlow Print Server: Mehrere Schwachstellen

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

Official advisory
BSI · German · WID-SEC-W-2022-0302Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem Programmcode mit Administratorrechten

Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um beliebigen Programmcode auszuführen, einen Cross-Site-Scripting-Angriff durchzuführen, Informationen offenzulegen, einen Denial-of-Service-Zustand zu verursachen oder Dateien zu manipulieren.

Official advisory
BSI · German · WID-SEC-W-2022-0169Oracle MySQL: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Oracle MySQL ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

Official advisory
BSI · German · WID-SEC-W-2022-1868Apache Tomcat: Schwachstelle ermöglicht Privilegieneskalation

Ein lokaler Angreifer kann eine Schwachstelle in Apache Tomcat ausnutzen, um seine Privilegien zu erhöhen.

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0958Multiples vulnérabilités dans les produits IBM

d?id=CVE-2021-47373 Référence CVE CVE-2021-47408 https://www.cve.org/CVERecord?id=CVE-2021-47408 Référence CVE CVE-2021-47449 https://www.cve.org/CVERecord?id=CVE-2021-47449 Référence CVE CVE-2021-47461 https://www.cve.org/CVERecord?id=CVE-2021-47461 Référence CVE CVE-2021-47468 https://www.cve.org/CVERecord?id=CVE-2021-47468 Référence CVE CVE-2021-47491 https://www.cve.org/CVERecord?id=CVE-2021-47491 Référence CVE CVE-2021-47548 https://www.cve.org/CVERecord?id=CVE-2021-47548 Référence CVE CVE-2021-47579 https://www.cve.org/CVERecord?id=CVE-2021-47579 Référence CVE CVE-2021-47624 https://www.cve.org/CVERecord?id=CVE-2021-47624 Référence CVE CVE-2022-23181 https://www.cve.org/CVERecord?id=CVE-2022-23181 Référence CVE CVE-2022-23471 https://www.cve.org/CVERecord?id=CVE-2022-23471 Référence CVE CVE-2022-23648 https://www.cve.org/CVERecord?id=CVE-2022-23648 Référence CVE CVE-2022-24999 https://www.cve.org/CVERecord?id=CVE-2022-24999 Référence CVE CVE-2022-25762 https://www.cve.org/CVERecord?id=CVE-2022-25762 Référence CVE CVE-2022-29885 https://www.cve.org/CVERecord?id=CVE-2022-29885 Référence CVE CVE-2022-31030 https://www.cve.org/CVERecord?id=CVE-2022-31030 Référence CVE CVE-2022-34305 https://www.cve.org/CVERecord?id=CVE-2022-34305 Référence CVE CVE-2022-40897 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2022-AVI-345Multiples vulnérabilités dans les produits SAP

rd?id=CVE-2022-0613 Référence CVE CVE-2022-22532 https://www.cve.org/CVERecord?id=CVE-2022-22532 Référence CVE CVE-2022-22533 https://www.cve.org/CVERecord?id=CVE-2022-22533 Référence CVE CVE-2022-22536 https://www.cve.org/CVERecord?id=CVE-2022-22536 Référence CVE CVE-2022-22541 https://www.cve.org/CVERecord?id=CVE-2022-22541 Référence CVE CVE-2022-22542 https://www.cve.org/CVERecord?id=CVE-2022-22542 Référence CVE CVE-2022-22543 https://www.cve.org/CVERecord?id=CVE-2022-22543 Référence CVE CVE-2022-22545 https://www.cve.org/CVERecord?id=CVE-2022-22545 Référence CVE CVE-2022-22965 https://www.cve.org/CVERecord?id=CVE-2022-22965 Référence CVE CVE-2022-23181 https://www.cve.org/CVERecord?id=CVE-2022-23181 Référence CVE CVE-2022-26101 https://www.cve.org/CVERecord?id=CVE-2022-26101 Référence CVE CVE-2022-26105 https://www.cve.org/CVERecord?id=CVE-2022-26105 Référence CVE CVE-2022-26106 https://www.cve.org/CVERecord?id=CVE-2022-26106 Référence CVE CVE-2022-26107 https://www.cve.org/CVERecord?id=CVE-2022-26107 Référence CVE CVE-2022-26108 https://www.cve.org/CVERecord?id=CVE-2022-26108 Référence CVE CVE-2022-26109 https://www.cve.org/CVERecord?id=CVE-2022-26109 Référence CVE CVE-2022-27654 https://www.cve.org/CVERecord?id=CVE-2022-27654 Référence CVE CVE-2022-27655 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2022-AVI-082Multiples vulnérabilités dans Apache Tomcat

De multiples vulnérabilités ont été découvertes dans Apache Tomcat. Elles permettent à un attaquant de provoquer une élévation de privilèges et une exécution de code arbitraire.

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
Apache Tomcat 10.1 10.1.0-M1 to 10.1.0-M8; Apache Tomcat 10.0 10.0.0-M5 to 10.0.14; Apache Tomcat 9 9.0.35 to 9.0.56; Apache Tomcat 8 8.5.55 to 8.5.73
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
A mitigation or workaround reference is available from the source linked below; validate it against the affected product and version.
04

Evidence and provenance

Published 27 Jan 2022 · Last source change 3 Aug 2024, 03:36 UTC · CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
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-2022-0937
Product sourceCNA
Remediation sourceCVE/CNA references
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
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2022-0937↗CVE authority or vendor reference↗Patch or update reference↗Patch or update 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-2022-23181 · cve.blacktree.nl