IBM AIX up to 4.3.3 enq -M memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

A vulnerability was found in IBM AIX up to 4.3.3 (Operating System) and classified as critical. This issue affects some unknown functionality of the file enq. The manipulation of the argument -M with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in enq command in IBM AIX 4.3.x and earlier may allow local users to execute arbitrary commands via a long -M argument.

The bug was discovered 12/01/2000. The weakness was disclosed 01/09/2001 by Esa Etelavuori (Website). The advisory is shared at marc.info. The identification of this vulnerability is CVE-2000-1121. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed in Shell File. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1698 days. During that time the estimated underground price was around $25k-$100k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (5619). The entries 16276, 16278 and 16280 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.4

VulDB Base Score: 9.3
VulDB Temp Score: 8.4
VulDB Vector: 🔍
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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0-Day Time: 🔍

Timelineinfo

05/17/1996 🔍
12/01/2000 +1659 days 🔍
12/01/2000 +0 days 🔍
12/01/2000 +0 days 🔍
01/09/2001 +39 days 🔍
01/09/2001 +0 days 🔍
05/18/2009 +3051 days 🔍
07/02/2014 +1871 days 🔍
09/04/2019 +1890 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: marc.info
Researcher: Esa Etelavuori
Status: Not defined

CVE: CVE-2000-1121 (🔍)
X-Force: 5619
Vulnerability Center: 22059 - IBM AIX 4.2 - 4.3.3 ENQ Command Long -M Argument Local Arbitrary Code Execution Vulnerability, High
SecurityFocus: 2034 - AIX enq Buffer Overflow Vulnerability
OSVDB: 1678 - IBM AIX, Buffer Overflow in 'enq' Program

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/02/2014 12:56
Updated: 09/04/2019 09:45
Changes: 07/02/2014 12:56 (68), 09/04/2019 09:45 (4)
Complete: 🔍

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