VDB-289 · CVE-2003-0692 · BID 8635

XFree86 up to 4.3.99.12 Session Cookie unknown vulnerability

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-$5k	0.00

A vulnerability classified as critical was found in XFree86 up to 4.3.99.12. Affected by this vulnerability is some unknown functionality of the component Session Cookie Handler. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

KDM in KDE 3.1.3 and earlier uses a weak session cookie generation algorithm that does not provide 128 bits of entropy, which allows attackers to guess session cookies via brute force methods and gain access to the user session.

The bug was discovered 09/16/2003. The weakness was shared 09/17/2003 by George Lebl (Website). The advisory is shared at xfree86.org. This vulnerability is known as CVE-2003-0692 since 08/14/2003. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 15225 (Debian DSA-388-1 : kdebase - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading to version 4.3.99.13 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at xfree86.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (15225). Additional details are provided at kde.org. The entries 20848 and 20849 are related to this item.

Productinfo

Name

XFree86

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.6

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Unknown
CWE: Unknown
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 15225
Nessus Name: Debian DSA-388-1 : kdebase - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53672
OpenVAS Name: Debian Security Advisory DSA 388-1 (kdebase)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: XFree86 4.3.99.13
Patch: xfree86.org

Timelineinfo

08/14/2003 🔍
09/16/2003 +32 days 🔍
09/16/2003 +0 days 🔍
09/17/2003 +1 days 🔍
09/17/2003 +0 days 🔍
09/19/2003 +1 days 🔍
09/25/2003 +6 days 🔍
10/06/2003 +11 days 🔍
09/29/2004 +359 days 🔍
03/08/2021 +6004 days 🔍

Sourcesinfo

Advisory: xfree86.org
Researcher: George Lebl
Status: Not defined
Confirmation: 🔍

CVE: CVE-2003-0692 (🔍)
OVAL: 🔍

SecuriTeam: securiteam.com
SecurityFocus: 8635
Secunia: 9757 - XFree Weak Session Cookies, Less Critical
OSVDB: 2564 - XFree Weak Session Cookies

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/19/2003 12:51
Updated: 03/08/2021 17:54
Changes: 09/19/2003 12:51 (83), 06/26/2019 14:52 (2), 03/08/2021 17:54 (4)
Complete: 🔍