CVE-2016-2126

Advisory lineage Upstream: 0 Downstream: 17
Modified
Published: 11 May 2017, 14:01
Last modified:05 Aug 2024, 23:17

Vulnerability Summary

Overall Risk (default)
medium
27/100
CVSS Score
6.5 MEDIUM
v3.1 (nvd)
EPSS Score
4.51% LOW
5% probability -0.18%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

11 May 2017, 14:01
Published
Vulnerability first disclosed
05 Aug 2024, 23:17
Last Modified
Vulnerability information updated

Description

Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4AV:N/AC:L/Au:S/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 4.51%• Percentile: 89%

Techniques & Countermeasures

  • CWE-264•Permissions, Privileges, and Access Controls

    Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Affected Systems

  • samba•samba

    ≥ 4.0.0, < 4.3.13 | ≥ 4.4.0, < 4.4.8 | ≥ 4.5.0, < 4.5.3

References (9)