IBM AIX up to 6.1.2 ToolTalk _tt_internal_realpath memory corruption

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CTI Interest Score
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10.0$0-$5k0.00

A vulnerability, which was classified as very critical, was found in IBM AIX up to 6.1.2 (Operating System). This affects the function _tt_internal_realpath of the component ToolTalk. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Stack-based buffer overflow in the _tt_internal_realpath function in the ToolTalk library (libtt.a) in IBM AIX 5.2.0, 5.3.0, 5.3.7 through 5.3.10, and 6.1.0 through 6.1.3, when the rpc.ttdbserver daemon is enabled in /etc/inetd.conf, allows remote attackers to execute arbitrary code via a long XDR-encoded ASCII string to remote procedure 15.

The bug was discovered 06/17/2009. The weakness was released 08/10/2009 by Adriano Lima (Website). The advisory is shared at vupen.com. This vulnerability is uniquely identified as CVE-2009-2727 since 08/10/2009. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/05/2024). It is expected to see the exploit prices for this product decreasing in the near future.

A public exploit has been developed in Ruby. The exploit is shared for download at securityfocus.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 2442 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 41917 (AIX 6.1 : X11.Dt.ToolTalk (U828611)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family AIX Local Security Checks and running in the context l.

A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (51207), Exploit-DB (16930), Tenable (41917), SecurityFocus (BID 35419†) and OSVDB (55151†).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 10.0

VulDB Base Score: 10.0
VulDB Temp Score: 10.0
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
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Programming Language: 🔍
Download: 🔍

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Nessus ID: 41917
Nessus Name: AIX 6.1 : X11.Dt.ToolTalk (U828611)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

MetaSploit ID: rpc_ttdbserverd_realpath.rb
MetaSploit Name: ToolTalk rpc.ttdbserverd _tt_internal_realpath Buffer Overflow (AIX)
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
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Timelineinfo

10/01/2002 🔍
06/08/2009 +2442 days 🔍
06/17/2009 +9 days 🔍
06/17/2009 +0 days 🔍
06/17/2009 +0 days 🔍
06/18/2009 +1 days 🔍
08/10/2009 +53 days 🔍
08/10/2009 +0 days 🔍
08/10/2009 +0 days 🔍
09/29/2009 +50 days 🔍
03/18/2015 +1996 days 🔍
06/05/2024 +3367 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: vupen.com
Researcher: Adriano Lima
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-2727 (🔍)
X-Force: 51207
SecurityFocus: 35419 - IBM AIX 'rpc.ttdbserver' Remote Buffer Overflow Vulnerability
Secunia: 35505
OSVDB: 55151 - IBM - AIX - 'rpc.ttdbserver' Remote Buffer Overflow Issue
Vulnerability Center: 22582 - IBM AIX Multiple Versions Remote Code Execution in the ToolTalk Library (libtt.a), Critical
Vupen: ADV-2009-1620

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

Entryinfo

Created: 03/18/2015 03:15 PM
Updated: 06/05/2024 08:19 PM
Changes: 03/18/2015 03:15 PM (82), 09/06/2019 10:22 AM (7), 06/05/2024 08:19 PM (17)
Complete: 🔍
Cache ID: 18:001:40

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