#VU42268 Permissions, Privileges, and Access Controls in libvirt - CVE-2013-4400

Vulnerability identifier: #VU42268

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2013-4400

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libvirt
Universal components / Libraries / Libraries used by multiple products

Vendor: libvirt.org

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

virt-login-shell in libvirt 1.1.2 through 1.1.3 allows local users to overwrite arbitrary files and possibly gain privileges via unspecified environment variables or command-line arguments.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libvirt: 1.1.2 - 1.1.3

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External links
https://libvirt.org/git/?p=libvirt.git;a=commit;h=3e2f27e13b94f7302ad948bcacb5e02c859a25fc
https://libvirt.org/git/?p=libvirt.git;a=commit;h=8c3586ea755c40d5e01b22cb7b5c1e668cdec994
https://libvirt.org/git/?p=libvirt.git;a=commit;h=b7fcc799ad5d8f3e55b89b94e599903e3c092467
https://lists.fedoraproject.org/pipermail/package-announce/2013-November/121370.html
https://secunia.com/advisories/60895
https://security.gentoo.org/glsa/glsa-201412-04.xml
https://wiki.libvirt.org/page/Maintenance_Releases
https://bugzilla.redhat.com/show_bug.cgi?id=1015228

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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.