XScreenSaver 4.10 getpwuid improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in XScreenSaver 4.10. This vulnerability affects the function getpwuid. Performing a manipulation results in improper authentication. This vulnerability is reported as CVE-2007-1859. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in XScreenSaver 4.10. This affects the function getpwuid. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

XScreenSaver 4.10, when using a remote directory service for credentials, does not properly handle the results from the getpwuid function in drivers/lock.c when there is no network connectivity, which causes XScreenSaver to crash and unlock the screen and allows local users to bypass authentication.

The bug was discovered 05/02/2007. The weakness was disclosed 05/03/2007 by Alex (Website). It is possible to read the advisory at redhat.com. This vulnerability is uniquely identified as CVE-2007-1859 since 04/04/2007. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 67485 (Oracle Linux 3 / 4 : xscreensaver (ELSA-2007-0322)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117553 (CentOS Security Update for XScreenSaver (CESA-2007:0322)).

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

The vulnerability is also documented in the databases at X-Force (34054), Tenable (67485), SecurityFocus (BID 23783†), OSVDB (35531†) and Secunia (SA25065†). The entry VDB-41849 is pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
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: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67485
Nessus Name: Oracle Linux 3 / 4 : xscreensaver (ELSA-2007-0322)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 830153
OpenVAS Name: Zoho ManageEngine Support Center Plus Multiple Fields XSS Vulnerabilities
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

04/04/2007 🔍
05/02/2007 +28 days 🔍
05/02/2007 +0 days 🔍
05/02/2007 +0 days 🔍
05/02/2007 +0 days 🔍
05/02/2007 +0 days 🔍
05/03/2007 +1 days 🔍
05/03/2007 +0 days 🔍
05/03/2007 +0 days 🔍
05/06/2007 +2 days 🔍
05/08/2007 +2 days 🔍
07/12/2013 +2257 days 🔍
03/13/2015 +609 days 🔍
06/09/2025 +3740 days 🔍

Sourcesinfo

Advisory: redhat.com
Researcher: Alex
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-1859 (🔍)
GCVE (CVE): GCVE-0-2007-1859
GCVE (VulDB): GCVE-100-36567

OVAL: 🔍

X-Force: 34054
SecurityFocus: 23783 - Xscreensaver Local Denial Of Service Vulnerability
Secunia: 25065
OSVDB: 35531 - XScreenSaver getpwuid() Failed Network Authentication Screen Lock Bypass
SecurityTracker: 1017996
Vulnerability Center: 14993 - XScreenSaver before 5.02 Local Denial of Service Allowing Authentication Bypass, Low

See also: 🔍

Entryinfo

Created: 03/13/2015 14:56
Updated: 06/09/2025 00:04
Changes: 03/13/2015 14:56 (83), 07/18/2019 16:43 (3), 06/09/2025 00:04 (22)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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