PowerBroker argv[0] buffer overflow
| powerbroker-argv-bo (40872) |  High Risk |
Description:
PowerBroker is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the pbrun, pbsh, and pbksh SUID binaries. By sending an overly long argv[0] argument, a local attacker could overflow a buffer and execute arbitrary code on the system with root privileges or cause the application to crash.
Platforms Affected:
- Symark, PowerBroker 2.8
- Symark, PowerBroker 3.0
- Symark, PowerBroker 3.2
- Symark, PowerBroker 3.5
- Symark, PowerBroker 4.0
- Symark, PowerBroker 5.0
- Symark, PowerBroker 5.0.1
Remedy:
Refer to the PowerBroker Security Upgrade for patch, upgrade or suggested workaround information. See References.
Consequences:
Gain Privileges
References:
- NNL-Labs & MNIN Security Advisory, Symark PowerBroker Security Advisory at http://www.mnin.org/advisories/2008_symarkpb.pdf.
- PowerBroker Security Upgrade, PowerBroker February 2008 Security Update at http://www.symark.com/support/PBFeb2008Announcement.html.
- BID-28015: Symark PowerBroker Client Multiple Local Buffer Overflow Vulnerabilities
- CVE-2008-1056: Multiple stack-based buffer overflows in Symark PowerBroker 2.8 through 5.0.1 allow local users to gain privileges via a long argv[0] string when executing (1) pbrun, (2) pbsh, or (3) pbksh. NOTE: the product is often installed in environments with trust relationships that facilitate subsequent remote compromises.
- SA29111: Symark PowerBroker Client Binaries Buffer Overflow Vulnerabilities
Reported:
Feb 26, 2008
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 the author/distributor (Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
Copyright (c) 1994-2008 Internet Security Systems, Inc. All rights reserved worldwide.
For corrections or additions please email xforce@iss.net