#VU33305 Input validation error in ZNC - CVE-2013-2130

Vulnerability identifier: #VU33305

Vulnerability risk: Low

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

CVE-ID: CVE-2013-2130

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ZNC
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: ZNC

Description

The vulnerability allows remote authenticated users to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (NULL pointer reference and crash) via a crafted request to the (1) editnetwork, (2) editchan, (3) addchan, or (4) delchan page in modules/webadmin.cpp.

Mitigation
Update to version 1.2.

Vulnerable software versions

ZNC: 1.0

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External links
https://advisories.mageia.org/MGASA-2013-0257.html
https://lists.fedoraproject.org/pipermail/package-announce/2013-August/114144.html
https://lists.fedoraproject.org/pipermail/package-announce/2013-August/114172.html
https://secunia.com/advisories/53450
https://www.mandriva.com/security/advisories?name=MDVSA-2015:013
https://www.openwall.com/lists/oss-security/2013/05/30/3
https://github.com/znc/znc/commit/2bd410ee5570cea127233f1133ea22f25174eb28

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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