Freedesktop dbus up to 1.2.3 dbus-marshal-validate.c _dbus_validate_signature_with_reason input validation

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.
4.6$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Freedesktop dbus. This vulnerability affects the function _dbus_validate_signature_with_reason of the file dbus-marshal-validate.c. Performing a manipulation results in input validation. This vulnerability is cataloged as CVE-2009-1189. Furthermore, there is an exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Freedesktop dbus. This affects the function _dbus_validate_signature_with_reason of the file dbus-marshal-validate.c. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on integrity, and availability. The summary by CVE is:

The _dbus_validate_signature_with_reason function (dbus-marshal-validate.c) in D-Bus (aka DBus) before 1.2.14 uses incorrect logic to validate a basic type, which allows remote attackers to spoof a signature via a crafted key. NOTE: this is due to an incorrect fix for CVE-2008-3834.

The weakness was shared 04/27/2009 (Website). It is possible to read the advisory at freedesktop.org. This vulnerability is uniquely identified as CVE-2009-1189 since 03/31/2009. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed in ANSI C. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 39786 (Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : dbus vulnerability (USN-799-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165190 (SUSE Security Update for Multiple Packages (SUSE-SR:2011:008)).

Upgrading to version 0.23 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (55494), Tenable (39786), SecurityFocus (BID 31602†), Secunia (SA32127†) and Vulnerability Center (SBV-22907†). The entries VDB-4208, VDB-7198, VDB-7203 and VDB-7205 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.1
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 39786
Nessus Name: Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : dbus vulnerability (USN-799-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 64478
OpenVAS Name: Debian Security Advisory DSA 1837-1 (dbus)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: dbus 0.23

Timelineinfo

10/06/2008 🔍
10/06/2008 +0 days 🔍
10/07/2008 +1 days 🔍
03/31/2009 +175 days 🔍
04/27/2009 +27 days 🔍
04/27/2009 +0 days 🔍
07/14/2009 +78 days 🔍
07/19/2009 +5 days 🔍
03/17/2015 +2067 days 🔍
08/09/2021 +2337 days 🔍

Sourcesinfo

Advisory: freedesktop.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-1189 (🔍)
GCVE (CVE): GCVE-0-2009-1189
GCVE (VulDB): GCVE-100-47919

OVAL: 🔍

X-Force: 55494
SecurityFocus: 31602 - D-Bus 'dbus_signature_validate()' Type Signature Denial of Service Vulnerability
Secunia: 32127 - D-Bus "_dbus_validate_signature_with_reason()" Denial of Service, Not Critical
Vulnerability Center: 22907 - D-Bus < 1.2.14 Signature Validation Remote Spoofing Vulnerability, Low
Vupen: ADV-2010-0528

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

Entryinfo

Created: 03/17/2015 23:38
Updated: 08/09/2021 18:55
Changes: 03/17/2015 23:38 (68), 02/11/2017 16:46 (16), 08/09/2021 18:55 (3)
Complete: 🔍
Cache ID: 216:642:103

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!