ircd-ratbox up to 2.0.9 null pointer dereference

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in ircd-ratbox up to 2.0.9. It has been rated as problematic. This issue affects some unknown processing. The manipulation leads to null pointer dereference. This vulnerability is uniquely identified as CVE-2012-6084. Moreover, an exploit is present. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in ircd-ratbox up to 2.0.9. It has been rated as problematic. This issue affects an unknown function. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

modules/m_capab.c in (1) ircd-ratbox before 3.0.8 and (2) Charybdis before 3.4.2 does not properly support capability negotiation during server handshakes, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed request.

The weakness was disclosed 01/01/2013 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2012-6084 since 12/06/2012. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed in Python. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 74063 (GLSA-201405-21 : Charybdis, ShadowIRCd: 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.

Upgrading to version 2.0.10 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (80890), Tenable (74063), SecurityFocus (BID 57085†) and Vulnerability Center (SBV-38180†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 74063
Nessus Name: GLSA-201405-21 : Charybdis, ShadowIRCd: Denial of Service
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 892612
OpenVAS Name: Debian Security Advisory DSA 2612-2 (ircd-ratbox - programming error
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ircd-ratbox 2.0.10
Patch: github.com

Timelineinfo

12/06/2012 🔍
12/31/2012 +25 days 🔍
12/31/2012 +0 days 🔍
01/01/2013 +1 days 🔍
01/01/2013 +0 days 🔍
01/28/2013 +27 days 🔍
05/19/2014 +476 days 🔍
03/24/2015 +309 days 🔍
12/21/2021 +2464 days 🔍

Sourcesinfo

Advisory: dsa-2612
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-6084 (🔍)
GCVE (CVE): GCVE-0-2012-6084
GCVE (VulDB): GCVE-100-63287

OVAL: 🔍

X-Force: 80890
SecurityFocus: 57085 - ircd-ratbox 'm_capab.c' Denial of Service Vulnerability
Vulnerability Center: 38180 - Charybdis and ircd-ratbox Remote Denial of Service due to Improper Support During Server Handshakes, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/21/2021 09:16
Changes: 03/24/2015 12:22 (64), 04/24/2017 09:55 (8), 12/21/2021 09:07 (5), 12/21/2021 09:12 (1), 12/21/2021 09:16 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!