CVE-2021-25317

cups: ownership of /var/log/cups allows the lp user to create files as root

CVSS score

3.3

EPSS probability

%0.3

Risk score

0.0

Published

5 y ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

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Vulnerability description

DayBreach CVE AI Research

CVE-2021-25317 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

A Incorrect Default Permissions vulnerability in the packaging of cups of SUSE Linux Enterprise Server 11-SP4-LTSS, SUSE Manager Server 4.0, SUSE OpenStack Cloud Crowbar 9; openSUSE Leap 15.2, Factory allows local attackers with control of the lp users to create files as root with 0644 permissions without the ability to set the content. This issue affects: SUSE Linux Enterprise Server 11-SP4-LTSS cups versions prior to 1.3.9. SUSE Manager Server 4.0 cups versions prior to 2.2.7. SUSE OpenStack Cloud Crowbar 9 cups versions prior to 1.7.5. openSUSE Leap 15.2 cups versions prior to 2.2.7. openSUSE Factory cups version 2.3.3op2-2.1 and prior versions.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2021-25317 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	suse	SUSE Linux Enterprise Server 11-SP4-LTSS	View
2	suse	SUSE Manager Server 4.0	View
3	suse	SUSE OpenStack Cloud Crowbar 9	View
4	opensuse	openSUSE Leap 15.2	View
5	opensuse	factory	View
6	suse	cups	View
7	suse	linux enterprise server	View
8	fedoraproject	fedora	View
9	fedoraproject	fedora	View
10	fedoraproject	fedora	View
11	suse	cups	View
12	suse	manager server	View
13	suse	cups	View
14	suse	openstack cloud crowbar	View
15	opensuse	leap	View
16	suse	cups	View
17	opensuse	factory	View

Total affected vendors: 3|Products: 17

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
3.3	CVSS V31	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N	NVD
3.3	CVSS V3_1	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N	CVE CNA
2.1	CVSS V2	—	AV:L/AC:L/Au:N/C:N/I:P/A:N	NVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

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Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-25317 is associated with the following CWEs:

CWE-276: Common Weakness Enumeration Entry CWE-276

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-25317 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureYerel erişim

PermissionsLow

UserGerekmiyor

Official Sources and Advisories

https://bugzilla.suse.com/show_bug.cgi?id=1184161vendor-advisory FEDORA-2021-dc578ce534vendor-advisory FEDORA-2021-7b698513d5vendor-advisory FEDORA-2021-be95e017e7vendor-advisory

CVSS Vector Radar Chart

3.3 / 10

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow privileges

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)None

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

suse

opensuse

fedoraproject

Weakness Type (CWE & CAPEC)

CWE-276

Similar Vulnerabilities

10.0

CVE-2021-44228 Actively exploited

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