Microsoft ATM Font Driver Privilege Escalation Vulnerability
Microsoft · ATM Font Driver
7.8HighCVSS 3.1
Recommended action
Patch now
CISA confirms exploitation in the wild and lists 2022-03-24 as the remediation due date.
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-2015-2480
CISA KEV mirrored by ENISA
ATMFD.DLL in the Adobe Type Manager Font Driver in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges via a crafted application, aka "ATMFD.DLL Memory Corruption Vulnerability."
EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 3 Mar 2022. Evidence sources: cisa_kev.
ENISA score
7.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch now
CISA confirms exploitation in the wild and lists 2022-03-24 as the remediation due date.
Patch available
01
What, why and how
ATMFD.DLL in the Adobe Type Manager Font Driver in Microsoft Windows Server allows local users to gain privileges via a crafted application.
What
ATMFD.DLL in the Adobe Type Manager Font Driver in Microsoft Windows Server allows local users to gain privileges via a crafted application.
Why
A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.
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
ATMFD.DLL in the Adobe Type Manager Font Driver in Microsoft Windows Server allows local users to gain privileges via a crafted application.
Why
A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.
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.Confirmed in the wild
CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2022-03-03.
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 → Out-of-bounds Write → 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
Low: no specialised conditions are recorded
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-787: Out-of-bounds Write. The product writes data past the end, or before the beginning, of the intended buffer.
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:L/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.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.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-787CISA KEV
A
Official authority intelligence
Only matched European and national findings are included. Language selectors and unavailable sources are omitted.
ENISA EUVD · EUVD-2015-2480Known-exploited evidence recorded
ATMFD.DLL in the Adobe Type Manager Font Driver in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges via a crafted application, aka "ATMFD.DLL Memory Corruption Vulnerability."
Official EUVD record ↗CERT-FR · French · CERTFR-2015-AVI-290Vulnérabilité dans le pilote de police Adobe Type Manager
Une vulnérabilité a été corrigée dans le pilote de
police Adobe Type Manage . Elle permet à un attaquant de provoquer
une élévation de privilèges.
Official advisory ↗JVN iPedia · Japanese · JVNDB-2015-003630Windows の Adobe Type Manager モジュールに特権昇格の脆弱性
Windows の Adobe Type Manager モジュールにはメモリ破損の脆弱性が存在します。結果として、当該 Windows システムの SYSTEM 権限を取得される可能性があります。 Microsoft Windows OS のカーネルモジュール Adobe Type Manager ( atmfd.dll ) は、OpenType フォントのサポートを提供するモジュールです。 Adobe Type Manager にはメモリ破損の脆弱性が存在し、Windows OS カーネルメモリが操作される可能性があります。 なお、本脆弱性を使用した攻撃コードが Hacking Team から漏えいした情報の一部として公開されています。CERT/CC では、この攻撃コードを使用して、「影響を受けるシステム」に記載されているバージョンの Windows OS 上で SYSTEM 権限を取得可能であることを確認しました。
Official advisory ↗KISA KrCERT/CC · Korean · KNVD-4533MS 7월 보안위협에 따른 정기 보안 업데이트 권고
ote Procedure Call 취약점으로 인한 권한 상승 문제
##### □ 영향
o 공격자가 영향 받는 시스템에 권한 상승
##### □ 설명
o 공격자가 영향 받는 시스템에 접속하여 특수하게 제작된 응용프로그램을 실행할 경우, 권한 상승 문제가 발생할 수 있는 취약점
o 관련취약점 :
- Windows Remote Procedure Call 권한 상승 취약점 ? (CVE-2015-2370)
o 영향 : 권한 상승
o 중요도 : 중요
##### □ 해당시스템
o 참조사이트 참고
- 한글 : https://technet.microsoft.com/ko-kr/library/security/MS15-076
- 영문 : https://technet.microsoft.com/en-us/library/security/MS15-076
##### □ 해결책
o 해당 시스템에 대한 마이크로소프트사의 취약점 패치 적용
[MS15-077] ATM 폰트 드라이버 취약점으로 인한 권한 상승 문제
##### □ 영향
o 공격자가 영향 받는 시스템에 권한 상승
##### □ 설명
o 공격자가 영향 받는 시스템에 접속하여 특수하게 제작된 응용프로그램을 실행할 경우, 권한 상승 문제가 발생할 수 있는 취약점
o 관련취약점 :
- ATMFD.DLL 메모리 손상 취약점 ? (CVE-2015-2387)
o 영향 : 권한 상승
o 중요도 : 중요
##### □ 해당시스템
o 참조사이트 참고
- 한글 : https://technet.microsoft.com/ko-kr/library/security/MS15-077
- 영문 : https://technet.microsoft.com/en-us/library/security/MS15-077
##### □ 해결책
o 해당 시스템에 대한 마이크로소프트사의 취약점 패치 적용
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.
Affected versionsThe structured affected or fixed version information changed.
Before
n/a · 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.
After
n/a: n/a · 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.
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.
CVE-2015-2387: Microsoft ATM Font Driver Privilege Escalation Vulnerability | BlackTree
