IBM AIX up to 6.1.2 ToolTalk _tt_internal_realpath memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability was found in IBM AIX up to 6.1.2. It has been classified as critical. The affected element is the function _tt_internal_realpath of the component ToolTalk. Performing a manipulation results in memory corruption. This vulnerability is identified as CVE-2009-2727. Additionally, an exploit exists.

Detailsinfo

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 03/30/2025). 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116468 (IBM AIX ToolTalk Library Buffer Overflow Vulnerability).

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†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.6

VulDB Base Score: 10.0
VulDB Temp Score: 9.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍

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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: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

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

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

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 🔍
03/30/2025 +3665 days 🔍

Sourcesinfo

Vendor: ibm.com

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

CVE: CVE-2009-2727 (🔍)
GCVE (CVE): GCVE-0-2009-2727
GCVE (VulDB): GCVE-100-49341
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 15:15
Updated: 03/30/2025 03:48
Changes: 03/18/2015 15:15 (82), 09/06/2019 10:22 (7), 06/05/2024 20:19 (17), 03/30/2025 03:48 (6)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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