XFree86 X11r6 xdm authComplain privileges management

CVSS Meta Temp Score
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CTI Interest Score
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9.4$0-$5k0.00

Summaryinfo

A vulnerability was found in XFree86 X11r6. It has been rated as critical. Affected by this issue is some unknown functionality of the component xdm. The manipulation of the argument authComplain leads to privileges management. This vulnerability is listed as CVE-2002-1510. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in XFree86 X11r6 (version unknown). This issue affects an unknown function of the component xdm. The manipulation of the argument authComplain with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

xdm, with the authComplain variable set to false, allows arbitrary attackers to connect to the X server if the xdm auth directory does not exist.

The bug was discovered 12/12/2001. The weakness was presented 03/03/2003 (Website). The advisory is shared at distro.conectiva.com.br. The identification of this vulnerability is CVE-2002-1510. 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 known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/19/2019). MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 446 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 12369 (RHEL 2.1 : XFree86 (RHSA-2003:065)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (11389), Tenable (12369), SecurityFocus (BID 3965†), OSVDB (11758†) and Vulnerability Center (SBV-15117†). See VDB-20601 for similar entry. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
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: 12369
Nessus Name: RHEL 2.1 : XFree86 (RHSA-2003:065)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

12/12/2001 🔍
01/19/2002 +38 days 🔍
03/03/2003 +408 days 🔍
03/03/2003 +0 days 🔍
03/03/2003 +0 days 🔍
06/25/2003 +114 days 🔍
07/06/2004 +377 days 🔍
05/15/2007 +1043 days 🔍
08/07/2014 +2641 days 🔍
07/19/2019 +1807 days 🔍

Sourcesinfo

Advisory: distro.conectiva.com.br
Status: Not defined

CVE: CVE-2002-1510 (🔍)
GCVE (CVE): GCVE-0-2002-1510
GCVE (VulDB): GCVE-100-20153
X-Force: 11389 - XFree86 xdm unauthorized access to X server
SecurityFocus: 3965 - XFree86 4.1.0 Missing authDir Unauthorized xdm Connection Vulnerability
OSVDB: 11758 - XFree86 - Missing authDir - Unauthorized xdm Connection Issue
Vulnerability Center: 15117 - XFree86 X11R6 xdm with No xdm Auth Directory Allows Remote Access to the X Server, Critical

See also: 🔍

Entryinfo

Created: 08/07/2014 18:03
Updated: 07/19/2019 09:53
Changes: 08/07/2014 18:03 (67), 07/19/2019 09:53 (7)
Complete: 🔍
Cache ID: 216:020:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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