Avira AntiVir sched.exe CreateProcess Local Privilege Escalation

HistoryDiffrelatejsonxmlCTI

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.
7.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Avira AntiVir. It has been declared as problematic. Affected by this vulnerability is the function CreateProcess of the file sched.exe. Such manipulation leads to Local Privilege Escalation. This vulnerability is uniquely identified as CVE-2009-2761. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Avira AntiVir (version now known). Affected by this issue is the function CreateProcess of the file sched.exe. The manipulation with an unknown input leads to a local privilege escalation vulnerability. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Unquoted Windows search path vulnerability in the scheduler (sched.exe) in Avira AntiVir, AntiVir Premium, Premium Security Suite, and AntiVir Professional might allow local users to gain privileges via a malicious antivir.exe file in the "C:\Program Files\avira\" directory.

The weakness was disclosed 01/15/2009 (Website). The advisory is shared for download at archives.neohapsis.com. This vulnerability is handled as CVE-2009-2761 since 08/13/2009. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

It is declared as proof-of-concept.

A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (46568) and OSVDB (55647†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Avira

Name

AntiVir

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.4
VulDB Temp Score: 7.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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: No

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

OpenVAS ID: 880988
OpenVAS Name: ereg_replace( string:path_name, pattern:\s+(/|\-|\-\-).*, replace:
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/24/2008 🔍
01/15/2009 +83 days 🔍
02/18/2009 +34 days 🔍
08/13/2009 +175 days 🔍
08/13/2009 +0 days 🔍
03/18/2015 +2043 days 🔍
03/15/2019 +1458 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Status: Not defined

CVE: CVE-2009-2761 (🔍)
GCVE (CVE): GCVE-0-2009-2761
GCVE (VulDB): GCVE-100-49412
X-Force: 46568
OSVDB: 55647 - Avira Multiple Products sched.exe CreateProcess() API Local Privilege Escalation
Vupen: ADV-2008-3130

Entryinfo

Created: 03/18/2015 15:15
Updated: 03/15/2019 16:19
Changes: 03/18/2015 15:15 (51), 03/15/2019 16:19 (4)
Complete: 🔍
Cache ID: 216::103