CVE-2024-45044 Bareos's negative command ACLs can be circumvented by abbreviating commands
Attackers can bypass negative command ACLs in Bareos by using command abbreviations, allowing execution of forbidden commands.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-45044?
CVE-2024-45044 is a high-severity vulnerability in bareos, published on 10 Sep 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-285
Which versions are affected by CVE-2024-45044?
How do I fix CVE-2024-45044?
No fix has been published for CVE-2024-45044 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-45044 being exploited?
There is no known exploitation of CVE-2024-45044 in the wild and no public exploit code.
Sources
Also known as GHSA-jfww-q346-r2r8, UBUNTU-CVE-2024-45044.