ZNC up to 1.1 WebAdmin CWebAdminMod::ChanPage null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in ZNC up to 1.1. The affected element is the function CWebAdminMod::ChanPage of the component WebAdmin. The manipulation results in null pointer dereference. This vulnerability is reported as CVE-2014-9403. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in ZNC up to 1.1. Affected is the function CWebAdminMod::ChanPage of the component WebAdmin. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:

The CWebAdminMod::ChanPage function in modules/webadmin.cpp in ZNC before 1.4 allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) by adding a channel with the same name as an existing channel but without the leading # character, related to a "use-after-delete" error.

The weakness was disclosed 12/19/2014 (Website). The advisory is shared for download at github.com. This vulnerability is traded as CVE-2014-9403 since 12/17/2014. The exploitability is told to be easy. It is possible to launch the attack remotely. The successful exploitation requires a authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 80109 (GLSA-201412-31 : ZNC: Denial of Service), 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 168259 (OpenSuSE Security Update for znc (openSUSE-SU-2015:2164-1)).

Upgrading to version 1.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (80109), SecurityFocus (BID 66926†), Secunia (SA57795†) and Vulnerability Center (SBV-55462†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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: 80109
Nessus Name: GLSA-201412-31 : ZNC: Denial of Service
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 18627
OpenVAS Name: Gentoo Linux Local Check: https://security.gentoo.org/glsa/201412-31
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 1.2

Timelineinfo

04/15/2014 🔍
04/15/2014 +0 days 🔍
04/15/2014 +0 days 🔍
12/17/2014 +246 days 🔍
12/19/2014 +2 days 🔍
12/19/2014 +0 days 🔍
12/19/2014 +0 days 🔍
12/19/2014 +0 days 🔍
03/27/2015 +98 days 🔍
01/03/2016 +282 days 🔍
12/08/2024 +3262 days 🔍

Sourcesinfo

Product: github.com

Advisory: 528
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-9403 (🔍)
GCVE (CVE): GCVE-0-2014-9403
GCVE (VulDB): GCVE-100-73332
SecurityFocus: 66926 - ZNC 'CWebAdminMod::ChanPage()' Function Denial of Service Vulnerability
Secunia: 57795 - znc "CWebAdminMod::ChanPage()" NULL Pointer Dereference Vulnerability, Less Critical
Vulnerability Center: 55462 - ZNC <1.4 Remote DoS via NULL Pointer, Medium

Entryinfo

Created: 03/27/2015 14:56
Updated: 12/08/2024 01:59
Changes: 03/27/2015 14:56 (64), 06/20/2018 08:30 (11), 04/09/2022 14:31 (3), 12/08/2024 01:59 (18)
Complete: 🔍
Cache ID: 216:CDB:103

Once again VulDB remains the best source for vulnerability data.

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