Permissions, Privileges, and Access Controls in libvirt

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU42985

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-1766

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to manipulate or delete data.

libvirt 1.0.2 and earlier sets the group owner to kvm for device files, which allows local users to write to these files via unspecified vectors.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libvirt: 0.0.1 - 1.0.1

CPE2.3

• cpe:2.3:a:libvirt_org:libvirt:0.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:libvirt_org:libvirt:0.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:libvirt_org:libvirt:0.0.3:*:*:*:*:*:*:*

External links

https://secunia.com/advisories/52628
https://www.debian.org/security/2013/dsa-2650
https://www.securityfocus.com/bid/58178

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.