Multiple Avira products CreateProcess() privilege escalation
| avira-createprocess-privilege-escalation (46568) |  High Risk |
Description:
Multiple Avira products could allow a local attacker to gain elevated privileges on the system, caused by the insecure use of the CreateProcess() function in the sched.exe service. A local attacker could exploit this vulnerability using a specially-crafted antivir.exe file in the "C:\Program Files\avira\" directory to gain elevated privileges on the vulnerable system.
*CVSS:
| Base Score: | 4.6 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 3.4 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
Remedy:
Avira AntiVir has issued a fix which is included in the regular automatic update, available to all Avira AntiVir users. See References.
References:
- Avira Web site: Avira.
- FrSIRT Security Advisory - Nov 12, 2008 : Avira Products Driver Local Kernel Pointer Overwrite Vulnerability .
- BID-32269: Multiple Avira Products Driver IOCTL Request Local Buffer Overflow Vulnerabilty
- CVE-2009-2761: 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.
- VUPEN/ADV-2008-3130: Avira Products Pointer Overwrite and Process Creation Vulnerabilities
Platforms Affected:
- Avira AntiVir 6.35.00.00
- Avira AntiVir build 228 PersonalEdition Premium
- Avira AntiVir Personal
- Avira AntiVir Professional
- Avira AntiVir build 180 PersonalEdition Classic
- Avira AntiVir Premium
- Avira Premium Security Suite
Reported:
Nov 12, 2008
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.