Xscreensaver up to 4.14 5 Temp File symlink

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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.
3.6	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Xscreensaver. The affected element is an unknown function of the component Temp File Handler. Performing a manipulation results in symlink. This vulnerability is known as CVE-2003-1294. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Xscreensaver. This affects an unknown functionality of the component Temp File Handler. The manipulation with an unknown input leads to a symlink vulnerability. CWE is classifying the issue as CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. This is going to have an impact on integrity. The summary by CVE is:

Xscreensaver before 4.15 creates temporary files insecurely in (1) driver/passwd-kerberos.c, (2) driver/xscreensaver-getimage-video, (3) driver/xscreensaver.kss.in, and the (4) vidwhacker and (5) webcollage screensavers, which allows local users to overwrite arbitrary files via a symlink attack.

The bug was discovered 10/24/2003. The weakness was published 12/31/2003 with SuSE as Bug 182286 as not defined bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2003-1294 since 02/28/2006. The exploitability is told to be easy. An attack has to be approached locally. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 68 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 21902 (CentOS 3 : xscreensaver (CESA-2006:0498)), 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 117715 (CentOS Security Update for XScreenSaver (CESA-2006:0498)).

Upgrading to version 4.15 eliminates this vulnerability. A possible mitigation has been published 3 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (13904), Tenable (21902), SecurityFocus (BID 9125†), OSVDB (25743†) and Secunia (SA20224†). Similar entries are available at VDB-21226 and VDB-23528. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Xscreensaver

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.6

VulDB Base Score: 4.0
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 21902
Nessus Name: CentOS 3 : xscreensaver (CESA-2006:0498)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Xscreensaver 4.15

Timelineinfo

10/24/2003 🔍
11/28/2003 +35 days 🔍
12/31/2003 +33 days 🔍
12/31/2003 +0 days 🔍
12/31/2003 +0 days 🔍
02/28/2006 +790 days 🔍
05/23/2006 +84 days 🔍
05/29/2006 +6 days 🔍
07/03/2006 +35 days 🔍
08/28/2014 +2978 days 🔍
06/19/2019 +1756 days 🔍

Sourcesinfo

Advisory: Bug 182286
Organization: SuSE
Status: Not defined
Confirmation: 🔍

CVE: CVE-2003-1294 (🔍)
GCVE (CVE): GCVE-0-2003-1294
GCVE (VulDB): GCVE-100-21225

OVAL: 🔍

X-Force: 13904
SecurityFocus: 9125 - SuSE XScreenSaver Package Multiple Vulnerabilities
Secunia: 20224
OSVDB: 25743 - XScreenSaver debugging code symlink
Vulnerability Center: 11683 - Xscreensaver Symlink Attack, Low
Vupen: ADV-2006-1948

See also: 🔍

Entryinfo

Created: 08/28/2014 17:40
Updated: 06/19/2019 15:25
Changes: 08/28/2014 17:40 (75), 06/19/2019 15:25 (8)
Complete: 🔍
Cache ID: 216::103

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