Vulnerability Name:

CVE-2020-26932 (CCN-189670)

Assigned:2020-10-09
Published:2020-10-09
Updated:2022-11-08
Summary:debian/sympa.postinst for the Debian Sympa package before 6.2.40~dfsg-7 uses mode 4755 for sympa_newaliases-wrapper, whereas the intended permissions are mode 4750 (for access by the sympa group)
CVSS v3 Severity:4.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
3.8 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-732
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-26932

Source: MISC
Type: Vendor Advisory
https://bugs.debian.org/971904

Source: CCN
Type: Debian Bug report logs - #971904
sympa: restrict access to sympa_newaliases-wrapper (setuid root) to group sympa (CVE-2020-26932)

Source: XF
Type: UNKNOWN
debian-cve202026932-sec-bypass(189670)

Source: MISC
Type: Mailing List, Vendor Advisory
https://salsa.debian.org/sympa-team/sympa/-/merge_requests/1

Source: DEBIAN
Type: Vendor Advisory
DSA-4818

Vulnerable Configuration:Configuration 1:
  • cpe:/a:sympa:sympa:*:*:*:*:*:*:*:* (Version < 6.2.40)
  • AND
  • cpe:/o:debian:debian_linux:-:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:debian:sympa:-:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    sympa sympa *
    debian debian linux -
    debian debian linux 10.0
    debian sympa -