Vulnerability Report

CVE-2021-31566

Title: Redhat Codeready Linux Builder Auth Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2021-31566.

CWE Category CWE-59
Published Date Aug 23, 2022
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 7.8 CVSS v3.1
Exploit Probability (EPSS)
0.37%

Vulnerability Summary

CVE-2021-31566: An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to gain more privileges in a system.

Impacted Vendors

F
freebsd 1
L
libarchive 1
R
redhat 1
S
splunk 1

Reference Links

https://access.redhat.com/security/cve/CVE-2021-31566 https://bugzilla.redhat.com/show_bug.cgi?id=2024237 https://github.com/libarchive/libarchive/commit/b41daecb5ccb4c8e3b2c53fd6147109fc12c3043 https://github.com/libarchive/libarchive/issues/1566 https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html https://access.redhat.com/security/cve/CVE-2021-31566 https://bugzilla.redhat.com/show_bug.cgi?id=2024237 https://github.com/libarchive/libarchive/commit/b41daecb5ccb4c8e3b2c53fd6147109fc12c3043 https://github.com/libarchive/libarchive/issues/1566 https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-31566 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.