Avast Antivirus up to 4.7.827 CHM Archive Local Privilege Escalation

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Avast Antivirus up to 4.7.827. It has been classified as problematic. Affected is an unknown function of the component CHM Archive Handler. This manipulation causes Local Privilege Escalation. This vulnerability is tracked as CVE-2006-2869. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Avast Antivirus up to 4.7.827 (Anti-Malware Software). Affected by this vulnerability is an unknown code block of the component CHM Archive Handler. The manipulation with an unknown input leads to a local privilege escalation vulnerability. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Unspecified vulnerability in the CHM unpacker in avast! before 4.7.844 has unknown impact and remote attack vectors.

The weakness was disclosed 06/02/2006 with Avast (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2006-2869 since 06/06/2006. 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.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at avast.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (26927), SecurityFocus (BID 18238†), OSVDB (25967†) and Secunia (SA20387†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.4
VulDB Temp Score: 7.6
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: Local Privilege Escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: avast.com

Timelineinfo

06/02/2006 🔍
06/02/2006 +0 days 🔍
06/02/2006 +0 days 🔍
06/02/2006 +0 days 🔍
06/06/2006 +3 days 🔍
06/06/2006 +0 days 🔍
06/09/2006 +3 days 🔍
04/21/2018 +4334 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: http://www.avast.com
Organization: Avast
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-2869 (🔍)
GCVE (CVE): GCVE-0-2006-2869
GCVE (VulDB): GCVE-100-2287
X-Force: 26927 - avast! Antivirus CHM unpacker unspecified vulnerability, Medium Risk
SecurityFocus: 18238
Secunia: 20387 - avast! Unspecified CHM Unpacker Vulnerability, Moderately Critical
OSVDB: 25967 - avast! CHM Unpacker Unspecified Issue
Vupen: ADV-2006-2115

Entryinfo

Created: 06/09/2006 12:51
Updated: 04/21/2018 09:32
Changes: 06/09/2006 12:51 (66), 04/21/2018 09:32 (7)
Complete: 🔍
Cache ID: 216:954:103

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

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