rdesktop 1.5.0 rdesktop.c channel_process numeric error

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.
9.0$0-$5k0.00

Summaryinfo

A vulnerability was found in rdesktop 1.5.0. It has been rated as critical. This impacts the function channel_process of the file rdesktop.c. Performing a manipulation results in numeric error. This vulnerability is known as CVE-2008-1803. Furthermore, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in rdesktop 1.5.0. It has been classified as critical. This affects the function channel_process of the file rdesktop.c. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Integer signedness error in the xrealloc function (rdesktop.c) in RDesktop 1.5.0 allows remote attackers to execute arbitrary code via unknown parameters that trigger a heap-based overflow. NOTE: the role of the channel_process function was not specified by the original researcher.

The bug was discovered 05/07/2008. The weakness was published 05/12/2008 with iDEFENSE (Website). It is possible to read the advisory at sourceforge.net. This vulnerability is uniquely identified as CVE-2008-1803 since 04/15/2008. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed in Perl. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 43696 (CentOS 5 : rdesktop (CESA-2008:0575)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117275 (CentOS Security Update for rdesktop (CESA-2008:0575)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (42277), Tenable (43696), SecurityFocus (BID 29097†), OSVDB (44945†) and Secunia (SA30118†). Similar entries are available at VDB-42300 and VDB-42299. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
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: 43696
Nessus Name: CentOS 5 : rdesktop (CESA-2008:0575)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 61023
OpenVAS Name: Debian Security Advisory DSA 1573-1 (rdesktop)
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: 🔍

Timelineinfo

04/15/2008 🔍
05/07/2008 +22 days 🔍
05/07/2008 +0 days 🔍
05/08/2008 +1 days 🔍
05/12/2008 +4 days 🔍
05/12/2008 +0 days 🔍
05/12/2008 +0 days 🔍
05/18/2008 +6 days 🔍
07/24/2008 +67 days 🔍
01/06/2010 +531 days 🔍
03/16/2015 +1895 days 🔍
08/10/2019 +1608 days 🔍

Sourcesinfo

Advisory: sourceforge.net
Organization: iDEFENSE
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-1803 (🔍)
GCVE (CVE): GCVE-0-2008-1803
GCVE (VulDB): GCVE-100-42315

OVAL: 🔍

X-Force: 42277
SecurityFocus: 29097 - rdesktop Multiple Remote Memory Corruption Vulnerabilities
Secunia: 30118
OSVDB: 44945 - CVE-2008-1803 - Rdesktop - Code Execution Issue
SecurityTracker: 1019992
Vulnerability Center: 18387 - rDesktop rdesktop.c Vulnerability Allows User-Assisted Code Execution and DoS, Medium
Vupen: ADV-2008-1467

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

Entryinfo

Created: 03/16/2015 17:00
Updated: 08/10/2019 10:36
Changes: 03/16/2015 17:00 (79), 08/10/2019 10:36 (13)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!