Vulnerability identifier: #VU51457
Vulnerability risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-269
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
crmsh
Client/Desktop applications /
Software for system administration
Vendor: ClusterLabs
Description
The vulnerability allows a local user to escalate privileges.
The vulnerability exists due to improper privilege management. A local user can call "crm history" (when "crm" is run) and execute commands via shell code injection to the crm history commandline, potentially allowing escalation of privileges.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
crmsh: 1.2.0 - 4.2.1
External links
http://www.openwall.com/lists/oss-security/2021/01/12/3
http://bugzilla.suse.com/show_bug.cgi?id=1179999
http://github.com/ClusterLabs/crmsh/blob/a403aa15f3ea575adfe5e43bf2a31c9f9094fcda/crmsh/history.py#L476
http://github.com/ClusterLabs/crmsh/releases
http://lists.debian.org/debian-lts-announce/2021/01/msg00021.html
http://www.openwall.com/lists/oss-security/2021/01/12/3
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.