Vulnerability Name:

CVE-2021-23177 (CCN-222216)

Assigned:2021-08-21
Published:2021-08-21
Updated:2022-12-03
Summary:An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. 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 change the ACL of a file on the system and gain more privileges.
CVSS v3 Severity:6.6 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L)
5.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): Low
Availibility (A): Low
6.6 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L)
5.8 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:5.7 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-59
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2021-23177

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: CCN
Type: Red Hat Bugzilla - Bug 2024245
CVE-2021-23177 libarchive: extracting a symlink with ACLs modifies ACLs of target

Source: secalert@redhat.com
Type: Issue Tracking, Patch, Third Party Advisory
secalert@redhat.com

Source: XF
Type: UNKNOWN
libarchive-cve202123177-priv-esc(222216)

Source: CCN
Type: libarchive GIT Repository
Fix handling of symbolic link ACLs

Source: secalert@redhat.com
Type: Patch, Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Issue Tracking, Patch, Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Mailing List, Third Party Advisory
secalert@redhat.com

Source: CCN
Type: IBM Security Bulletin 6607135 (QRadar SIEM)
IBM QRadar SIEM Application Framework Base Image is vulnerable to using components with Known Vulnerabilities

Source: CCN
Type: IBM Security Bulletin 6831813 (Netcool Operations Insight)
Netcool Operations Insight v1.6.6 contains fixes for multiple security vulnerabilities.

Source: CCN
Type: IBM Security Bulletin 6832956 (Cloud Pak for Security)
IBM Cloud Pak for Security is vulnerable to using components with known vulnerabilities

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*
    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::crb:*:*:*:*:*
    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:8:*:*:*:*:*:*:*
    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:8::baseos:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:libarchive:libarchive:3.5.1:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:qradar_security_information_and_event_manager:7.3:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_security_information_and_event_manager:7.4:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:766
    P
    		Security update for libarchive (Moderate)
    2022-09-19
    oval:com.redhat.rhsa:def:20220892
    P
    		RHSA-2022:0892: libarchive security update (Moderate)
    2022-03-15
    BACK
    libarchive libarchive 3.5.1
    ibm qradar security information and event manager 7.3
    ibm qradar security information and event manager 7.4 -