Input validation error in ZNC



| Updated: 2020-08-03
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2013-2130
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 ZNC
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor ZNC

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU33305

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 - Improper input validation

Exploit availability: No

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

CPE2.3 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


Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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