[NEWS] HP SIM 5.0 Session Fixation Vulnerability

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HP SIM 5.0 Session Fixation Vulnerability
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SUMMARY

There is a session fixation vulnerability in HP Systems Insight Manager
4.2 and 5.0 SP4/5 (IM) that allows an attacker to gain administrative
access to IM console. As a result, the attacker can take complete
administrative control over all managed systems, upload and execute
malicious code on them, extract any information from them and disable them
at her will.

DETAILS

Vulnerable Systems:
* HP Systems Insight Manager version 4.2
* HP Systems Insight Manager version 5.0 SP4
* HP Systems Insight Manager version 5.0 SP5

Immune Systems:
* HP Systems Insight Manager version 5.1

The Systems Insight Manager web application is using a JSESSIONID session
cookie for maintaining a session with administrator's browser. Apparently,
the console is vulnerable to session fixation and allows an attacker to
obtain the session cookie, fix it on administrator's browser and thus
force him to use that cookie when subsequently logging into the
administration console. Once the administrator is logged in, the attacker
can use the same cookie to enter the already logged-in session and assume
the identity of the administrator.

After gaining administrative rights, an attacker can do anything the
administrator could do, including executing arbitrary commands on all
managed computers. In SIM Service Pack 4, a new cookie JSESSIONIDSSO was
introduced to fix this issue; however, it was possible to bypass checks
for the JSESSIONIDSSO cookie and thus still attack the SIM administrator
with a fixed JSESSIONID cookie.

Solution:
HP has released a newer version of SIM (SIM 5.1) which fixes this issue.

ADDITIONAL INFORMATION

The information has been provided by <mailto:lists@acros.si> ACROS
Security.
The original article can be found at:
<http://www.acrossecurity.com/aspr/ASPR-2007-05-14-1-PUB.txt>

http://www.acrossecurity.com/aspr/ASPR-2007-05-14-1-PUB.txt

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