SB2017050831 - Multiple vulnerabilities in IBM BladeCenter Advanced Management Module (AMM)

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Memory corruption (CVE-ID: CVE-2014-6277)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to incorrect parsing of environment variables. A remote attacker can trigger memory corruption and execute arbitrary code on the target system as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. The vulnerability was introduced by incorrect patching of vulnerabilities #1 (CVE-2014-6271) and #2 (CVE-2014-7169).

Successful exploitation results in arbitrary code execution on the vulnerable system.

Note: this vulnerability was being actively exploited in the wild.

2) Command injection (CVE-ID: CVE-2014-6278)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to an incomplete fix related to the parsing of user scripts. By using attack vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, a remote attacker can execute arbitrary code with privileges of the current user. The vulnerability was introduced by incorrect patching of vulnerabilities #1 (CVE-2014-6271),  #2 (CVE-2014-7169) and #3 (CVE-2014-6277)

Successful exploitation results in arbitrary code execution on the vulnerable system.

Note: this vulnerability was being actively exploited.

3) Improper input validation (CVE-ID: CVE-2016-0634)

The vulnerability allows a remote authenticated attacker to execute arbitrary code on the target system.

The vulnerability exists in the expansion of 'h' in the prompt string due to insufficient validation of user-supplied input. A remote attacker can place shell metacharacters in 'hostname' of a machine and execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

4) Command injection (CVE-ID: CVE-2016-7543)

The vulnerability allows a local attacker to execute arbitrary commands on the target system.

Remediation

Install update from vendor's website.

References

• https://www.ibm.com/support/pages/node/868700