CVE-2024-45044CWE-285

Bareos's negative command ACLs can be circumvented by abbreviating commands

High · published September 10, 2024

CVSS v3.1
8.8
EPSS
1%
Percentile
44.1
In the wild
Unconfirmed
What it is

Bareos is open source software for backup, archiving, and recovery of data for operating systems. When a command ACL is in place and a user executes a command in bconsole using an abbreviation (i.e. "w" for "whoami") the ACL check did not apply to the full form (i.e. "whoami") but to the abbreviated form (i.e. "w"). If the command ACL is configured with negative ACL that should forbid using the "whoami" command, you could still use "w" or "who" as a command successfully. Fixes for the problem are shipped in Bareos versions 23.0.4, 22.1.6 and 21.1.11. If only positive command ACLs are used without any negation, the problem does not occur.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00531 · 44.1th percentile
Weakness
CWE-285 · Improper Authorization
Published
2024-09-10T14:57Z
EPSS history
Timeline
  • 10 SEP 14:57Z
    Bareos's negative command ACLs can be circumvented by abbreviating commands
    cvelistv5