AIX 6.1 TL 0 : libC (IZ56203)

high Nessus Plugin ID 64341

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Synopsis

The remote AIX host is missing a security patch.

Description

There is a an error in the handling of the _LIB_INIT_DBG and
_LIB_INIT_DBG_FILE environment variables in a debugging component of the XL C++ runtime library. A local user can exploit this error when executing setuid root programs linked with the XL C++ runtime library, and thereby create arbirtrary, world writeable files owned by root.

The successful exploitation of this vulnerability allows a local user to create arbitrary files and execute arbitrary code as the root user.

Note that in AIX 6.1 the debugging component moved from libC.a to libc.a. This means that the fix is delivered by updating the XL C++ runtime on AIX 5.3 and earlier, and by updating the bos.rte.libc fileset on AIX 6.1.

The following libraries are vulnerable :

AIX 5.3 and earlier: /usr/lpp/xlC/lib/libC.a

AIX 6.1: /usr/ccs/lib/libc.a /usr/ccs/lib/libp/libc.a.

Solution

Install the appropriate interim fix.

Plugin Details

Severity: High

ID: 64341

File Name: aix_IZ56203.nasl

Version: 1.5

Type: local

Family: AIX Local Security Checks

Published: 1/30/2013

Updated: 4/21/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: cpe:/o:ibm:aix:6.1

Required KB Items: Host/local_checks_enabled, Host/AIX/version, Host/AIX/lslpp

Patch Publication Date: 8/4/2009

Vulnerability Publication Date: 8/4/2009

Reference Information

CVE: CVE-2009-2669

CWE: 264

Detections

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