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IBM Tivoli Storage Manager Client Information Disclosure and Buffer Overflow
Secunia Advisory: SA26883
Release Date: 2007-09-20
Last Update: 2007-09-25
Popularity: 5,703 views

Critical:
Moderately critical
Impact: Exposure of sensitive information
System access
Where: From local network
Solution Status: Vendor Patch

Software:IBM Tivoli Storage Manager Client 5.x

Binary Analysis: BA234 :: Available for 1 Credit

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CVE reference:CVE-2007-4880


Description:
Two vulnerabilities have been reported in IBM Tivoli Storage Manager (TSM) Client, which can be exploited by malicious people to disclose sensitive information or potentially compromise a vulnerable system.

1) Boundary errors within dsmcad.exe when parsing HTTP headers can be exploited to cause various buffer overflows by sending a specially crafted HTTP request containing an overly long "host" parameter to the Client Acceptor Daemon (CAD).

Successful exploitation allows execution of arbitrary code.

2) An unspecified error when using server-initiated prompted scheduling can be exploited to e.g. gain access to the client's data.

The vulnerabilities are reported in versions 5.1, 5.2, 5.3, and 5.4 and reportedly affect the following client interfaces:
* The Web client GUI, which uses the CAD
* Backup-Archive client scheduling using the CAD (CAD-managed scheduling)
* Backup-Archive server-initiated prompted scheduling

Solution:
Apply client update packages.

5.4.1.2 (PTF UK27738 and UK27739):
http://www.ibm.com/support/docview.wss?uid=swg24016585

5.3.5.3 (PTF UK29248 and UK29249):
http://www.ibm.com/support/docview.wss?uid=swg24016838

5.2.5.2 and 5.1.8.1:
http://www.ibm.com/support/docview.wss?uid=swg24016985
http://www.ibm.com/support/docview.wss?uid=swg24016986

Provided and/or discovered by:
1) Sebastian Apelt, via ZDI
2) Reported by an IBM customer.

Changelog:
2007-09-25: Updated vulnerability #1 in "Description". Added CVE reference and link to ZDI. Corrected link to IBM for version 5.1.8.1 in "Solution".

Original Advisory:
IBM:
http://www-1.ibm.com/support/docview.wss?uid=swg21268775

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-07-054.html


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