systemtap staprun privilege escalation
| systemtap-staprun-priv-escalation (63344) |  High Risk |
Description:
SystemTap could allow a local attacker to gain elevated privileges, caused by improper validation of the environment before executing the modprobe command to load an additional kernel module. An attacker could exploit this vulnerability to gain elevated privileges.
*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:
Apply the appropriate patch for your system. See References.
References:
- Mailing list for the systemtap project: important systemtap security fix.
- Offensive Security Exploit Database [11-26-2010]: Local Root Privilege Escalation Vulnerability in systemtap.
- SystemTap Web page: SystemTap.
- BID-44914: SystemTap 'modprob' Command Environment Variable Local Privilege Escalation Vulnerability
- CVE-2010-4170: The staprun runtime tool in SystemTap 1.3 does not properly clear the environment before executing modprobe, which allows local users to gain privileges by setting the MODPROBE_OPTIONS environment variable to specify a malicious configuration file.
- DSA-2348: systemtap -- several vulnerabilities
- OSVDB ID: 69489: SystemTap /usr/bin/staprun Kernel Module Loading Local Privilege Escalation
- RHSA-2010-0894: Important: systemtap security update
- RHSA-2010-0895: Moderate: systemtap security update
- SA42256: SystemTap Denial of Service and Privilege Escalation Vulnerabilities
- SECTRACK ID: 1024754: SystemTap Lets Local Users Gain Elevated Privileges and Deny Service
Platforms Affected:
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 4 Desktop
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 4.8.z ES
- RedHat Enterprise Linux 4.8.z AS
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5
- RedHat Enterprise Linux 6 Server
- RedHat Enterprise Linux 6 Workstation
- RedHat Enterprise Linux Desktop 6
- RedHat Enterprise Linux HPC Node 6
- RedHat Enterprise Linux Server EUS 6.0.z
- SystemTap SystemTap 1.3
Reported:
Nov 17, 2010
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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.