Gentoo Linux link following

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Gentoo Linux. Affected by this vulnerability is an unknown functionality. Performing a manipulation results in link following. This vulnerability was named CVE-2008-1078. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Gentoo Linux (the affected version is unknown). This affects an unknown code. The manipulation with an unknown input leads to a link following vulnerability. CWE is classifying the issue as CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

expn in the am-utils and net-fs packages for Gentoo, rPath Linux, and other distributions, allows local users to overwrite arbitrary files via a symlink attack on the expn[PID] temporary file. NOTE: this is the same issue as CVE-2003-0308.1.

The bug was discovered 02/15/2008. The weakness was presented 02/28/2008 by Tavis Ormandy (Website). It is possible to read the advisory at redhat.com. This vulnerability is uniquely identified as CVE-2008-1078 since 02/28/2008. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 31956 (GLSA-200804-09 : am-utils: Insecure temporary file creation), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (40939), Tenable (31956), SecurityFocus (BID 28044†), OSVDB (43039†) and Secunia (SA29144†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.4
VulDB Temp Score: 8.0
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: Link following
CWE: CWE-59
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: 31956
Nessus Name: GLSA-200804-09 : am-utils: Insecure temporary file creation
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 63130
OpenVAS Name: Fedora Core 9 FEDORA-2008-10755 (am-utils)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

02/15/2008 🔍
02/15/2008 +0 days 🔍
02/28/2008 +13 days 🔍
02/28/2008 +0 days 🔍
02/28/2008 +0 days 🔍
02/28/2008 +0 days 🔍
04/10/2008 +42 days 🔍
04/17/2008 +7 days 🔍
04/21/2008 +4 days 🔍
03/16/2015 +2520 days 🔍
08/08/2019 +1606 days 🔍

Sourcesinfo

Advisory: redhat.com
Researcher: Tavis Ormandy
Status: Not defined
Confirmation: 🔍

CVE: CVE-2008-1078 (🔍)
GCVE (CVE): GCVE-0-2008-1078
GCVE (VulDB): GCVE-100-41283
X-Force: 40939
SecurityFocus: 28044 - am-utils 'expn' Insecure Temporary File Creation Vulnerability
Secunia: 29144
OSVDB: 43039 - am-utils - 'expn' - Insecure Temporary File Creation Issue
Vulnerability Center: 18211 - am-utils Symlink Attack via expn Temporary Files, Critical

Entryinfo

Created: 03/16/2015 13:43
Updated: 08/08/2019 16:45
Changes: 03/16/2015 13:43 (70), 08/08/2019 16:45 (8)
Complete: 🔍
Cache ID: 216:E6F:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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