Vulnerability Name:

CVE-2020-25580 (CCN-198980)

Assigned:2020-09-14
Published:2021-02-24
Updated:2022-07-12
Summary:In FreeBSD 12.2-STABLE before r369346, 11.4-STABLE before r369345, 12.2-RELEASE before p4 and 11.4-RELEASE before p8 a regression in the login.access(5) rule processor has the effect of causing rules to fail to match even when they should not. This means that rules denying access may be ignored.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/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): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/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): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-697
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-25580

Source: XF
Type: UNKNOWN
freebsd-cve202025580-sec-bypass(198980)

Source: MISC
Type: Vendor Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:03.pam_login_access.asc

Source: CONFIRM
Type: Third Party Advisory
https://security.netapp.com/advisory/ntap-20210423-0005/

Source: CCN
Type: FreeBSD Security Advisory FreeBSD-SA-21:03.pam_login_access
login.access fails to apply rules

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-25580

Vulnerable Configuration:Configuration 1:
  • cpe:/o:freebsd:freebsd:11.4:-:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:p1:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:p3:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:p2:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.2:p1:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.2:p2:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.2:-:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.2:p3:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:p4:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:p5:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:p6:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:p7:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:freebsd:freebsd:11.4:stable:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:release:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    freebsd freebsd 11.4 -
    freebsd freebsd 11.4 p1
    freebsd freebsd 11.4 p3
    freebsd freebsd 11.4 p2
    freebsd freebsd 12.2 p1
    freebsd freebsd 12.2 p2
    freebsd freebsd 12.2 -
    freebsd freebsd 12.2 p3
    freebsd freebsd 11.4 p4
    freebsd freebsd 11.4 p5
    freebsd freebsd 11.4 p6
    freebsd freebsd 11.4 p7
    freebsd freebsd 11.4 stable
    freebsd freebsd 11.4 release