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TITLE:
Opera Cache Objects History Enumeration Weakness

SECUNIA ADVISORY ID:
SA47128

VERIFY ADVISORY:
Secunia.com
https://secunia.com/advisories/47128/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=47128

RELEASE DATE:
2011-12-06

DISCUSS ADVISORY:
https://secunia.com/advisories/47128/#comments

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

https://secunia.com/advisories/47128/

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=47128

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

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

DESCRIPTION:
A weakness has been discovered in Opera, which can be exploited by
malicious people to disclose sensitive information.

The weakness is caused due to an error when handling cache objects
and can be exploited to enumerate visited sites.

The weakness is confirmed in version 11.60. Other versions may also
be affected.

SOLUTION:
Enable "Private Browsing" when browsing untrusted websites.

PROVIDED AND/OR DISCOVERED BY:
Originally discussed by Edward W. Felten and Michael A. Schneider,
Princeton University.

Additional information and proof provided by Michal Zalewski.

ORIGINAL ADVISORY:
Edward W. Felten and Michael A. Schneider:
https://sip.cs.princeton.edu/pub/webtiming.pdf

Michal Zalewski:
https://lcamtuf.coredump.cx/cachetime/

OTHER REFERENCES:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

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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:
https://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
https://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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