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TITLE:
Shibboleth Identity Provider TransientID Mapping Security Issue

SECUNIA ADVISORY ID:
SA42887

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42887/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42887

RELEASE DATE:
2011-01-13

DISCUSS ADVISORY:
http://secunia.com/advisories/42887/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/42887/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=42887

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A security issue has been reported in Shibboleth, which can be
exploited by malicious users to disclose potentially sensitive
information.

The security issue is caused due to the Identity Provider assigning
the same transient ID to multiple users. This can be exploited to
disclose attribute query results of another user.

Successful exploitation requires session IP address checking to be
disabled (enabled by default) and an attacker's IP address to change
after authentication but before a SAML response is sent.

The security issue is reported in versions prior to 2.2.1.

SOLUTION:
Update to version 2.2.1.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Robert Egglestone, Univ. of Auckland.

ORIGINAL ADVISORY:
http://shibboleth.internet2.edu/secadv/secadv_20110113.txt

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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