SB2014061308 - Improper access control in Net-Server

Description

This security bulletin contains information about 1 vulnerability.

1) Improper access control (CVE-ID: CVE-2013-1841)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due Net-Server does not check if the hostname resolves to the source IP address when the reverse-lookups option is enabled. A remote attacker can bypass implemented security restrictions and gain unauthorized access to the application.

Remediation

Install update from vendor's website.

References

• http://www.openwall.com/lists/oss-security/2013/03/04/10
• http://www.openwall.com/lists/oss-security/2013/03/12/2
• http://www.securityfocus.com/bid/58309
• https://bugzilla.redhat.com/show_bug.cgi?id=920683
• https://exchange.xforce.ibmcloud.com/vulnerabilities/82900