ZNC 0.056/0.058/0.062 Configuration File znc.conf code injection

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in ZNC 0.056/0.058/0.062. The impacted element is an unknown function of the file znc.conf of the component Configuration File. The manipulation results in code injection. This vulnerability is cataloged as CVE-2009-0759. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in ZNC 0.056/0.058/0.062. Affected is some unknown functionality of the file znc.conf of the component Configuration File. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Multiple CRLF injection vulnerabilities in webadmin in ZNC before 0.066 allow remote authenticated users to modify the znc.conf configuration file and gain privileges via CRLF sequences in the quit message and other vectors.

The bug was discovered 02/24/2009. The weakness was shared 02/24/2009 (Website). The advisory is shared for download at znc.svn.sourceforge.net. This vulnerability is traded as CVE-2009-0759 since 03/03/2009. The exploitability is told to be easy. It is possible to launch the attack remotely. A authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

The vulnerability scanner Nessus provides a plugin with the ID 35792 (GLSA-200903-02 : ZNC: Privilege escalation), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175159 (Debian Security Update for ZNC (DSA-1735)).

Upgrading to version 0.056 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (48891), Tenable (35792), SecurityFocus (BID 33899†), OSVDB (52295†) and Secunia (SA34230†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 35792
Nessus Name: GLSA-200903-02 : ZNC: Privilege escalation
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 63578
OpenVAS Name: Debian Security Advisory DSA 1735-1 (znc)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: ZNC 0.056

Timelineinfo

02/24/2009 🔍
02/24/2009 +0 days 🔍
02/24/2009 +0 days 🔍
02/24/2009 +0 days 🔍
02/25/2009 +1 days 🔍
03/03/2009 +5 days 🔍
03/03/2009 +0 days 🔍
03/06/2009 +3 days 🔍
03/08/2009 +2 days 🔍
03/11/2009 +3 days 🔍
03/16/2009 +5 days 🔍
03/17/2015 +2192 days 🔍
04/27/2025 +3694 days 🔍

Sourcesinfo

Advisory: znc.svn.sourceforge.net
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-0759 (🔍)
GCVE (CVE): GCVE-0-2009-0759
GCVE (VulDB): GCVE-100-46944

OVAL: 🔍

X-Force: 48891
SecurityFocus: 33899 - ZNC Webadmin Module Remote Privilege Escalation Vulnerability
Secunia: 34230 - Debian update for znc, Moderately Critical
OSVDB: 52295 - ZNC Webadmin Module znc.conf QuitMessage Field Security Restriction Bypass
Vulnerability Center: 21272 - ZNC < 0.066 Vulnerability Allows Remote Authenticated Attackers to Conduct CRLF Injection, Medium

Entryinfo

Created: 03/17/2015 16:11
Updated: 04/27/2025 04:51
Changes: 03/17/2015 16:11 (82), 08/30/2019 16:42 (2), 04/27/2025 04:51 (20)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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