CVE-2020-13776 Information

Description

systemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Reference

https://github.com/systemd/systemd/issues/15985 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IYGLFEKG45EYBJ7TPQMLWROWPTZBEU63/ https://security.netapp.com/advisory/ntap-20200611-0003/

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.7