GNU Emacs up to 21.4 link following

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in GNU Emacs 20.7/21.1/21.2/21.3/21.4. This issue affects some unknown processing. This manipulation causes link following. The identification of this vulnerability is CVE-2008-1694. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in GNU Emacs 20.7/21.1/21.2/21.3/21.4 (Word Processing Software) and classified as problematic. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

vcdiff in Emacs 20.7 to 22.1.50, when used with SCCS, allows local users to overwrite arbitrary files via a symlink attack on temporary files.

The bug was discovered 04/08/2008. The weakness was shared 04/22/2008 by Steve Grubb with Red Hat as Bug 208483 as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2008-1694 since 04/08/2008. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 36539 (Mandriva Linux Security Advisory : emacs (MDVSA-2008:096)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l.

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

The vulnerability is also documented in the databases at X-Force (41906), Tenable (36539), SecurityFocus (BID 28857†), OSVDB (44566†) and Secunia (SA29905†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
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: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 36539
Nessus Name: Mandriva Linux Security Advisory : emacs (MDVSA-2008:096)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 830505
OpenVAS Name: Mandriva Update for mysql MDVA-2012:049 (mysql)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

04/08/2008 🔍
04/08/2008 +0 days 🔍
04/11/2008 +3 days 🔍
04/21/2008 +10 days 🔍
04/22/2008 +1 days 🔍
04/22/2008 +0 days 🔍
04/22/2008 +0 days 🔍
05/06/2008 +14 days 🔍
05/12/2008 +6 days 🔍
04/23/2009 +346 days 🔍
03/16/2015 +2153 days 🔍
08/10/2019 +1608 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: Bug 208483
Researcher: Steve Grubb
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-1694 (🔍)
GCVE (CVE): GCVE-0-2008-1694
GCVE (VulDB): GCVE-100-42079

OVAL: 🔍

X-Force: 41906
SecurityFocus: 28857 - GNU Emacs Insecure Temporary File Creation Vulnerability
Secunia: 29905
OSVDB: 44566 - GNU - Emacs - Insecure Temporary File Creation Issue
SecurityTracker: 1019909
Vulnerability Center: 18357 - Emacs Vcdiff Vulnerability Allows Local Users to Overwrite Arbitrary Files via a Symlink Attack, Medium
Vupen: ADV-2008-1309

Entryinfo

Created: 03/16/2015 17:00
Updated: 08/10/2019 09:30
Changes: 03/16/2015 17:00 (76), 08/10/2019 09:30 (13)
Complete: 🔍
Cache ID: 216::103

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