X.org X11 3.3/3.3.3 Cookie gettimeofday improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in X.org X11 3.3/3.3.3. This affects the function gettimeofday of the component Cookie Handler. Such manipulation leads to improper authentication. This vulnerability is traded as CVE-2001-1086. Furthermore, there is an exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in X.org X11 3.3/3.3.3 (Windowing System Software). It has been rated as critical. Affected by this issue is the function gettimeofday of the component Cookie Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

XDM in XFree86 3.3 and 3.3.3 generates easily guessable cookies using gettimeofday() when compiled with the HasXdmXauth option, which allows remote attackers to gain unauthorized access to the X display via a brute force attack.

The weakness was shared 07/04/2001 (Website). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-2001-1086. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed in ANSI C. The exploit is available at securityfocus.com. It is declared as proof-of-concept.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (6808), Exploit-DB (20993) and SecurityFocus (BID 2985†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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: Improper authentication
CWE: CWE-287
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: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/04/2001 🔍
07/04/2001 +0 days 🔍
07/04/2001 +0 days 🔍
07/07/2014 +4751 days 🔍
01/23/2025 +3853 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: securityfocus.com⛔
Status: Confirmed

CVE: CVE-2001-1086 (🔍)
GCVE (CVE): GCVE-0-2001-1086
GCVE (VulDB): GCVE-100-16964
X-Force: 6808 - XFree86 xdm brute force cookie attack
SecurityFocus: 2985 - XDM Session Cookie Guessing Vulnerability

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

Entryinfo

Created: 07/07/2014 10:27
Updated: 01/23/2025 13:40
Changes: 07/07/2014 10:27 (53), 05/31/2018 10:20 (7), 01/23/2025 13:40 (19)
Complete: 🔍
Cache ID: 216:101:103

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