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TITLE:
Zend Optimizer Insecure Permissions Privilege Escalation Security
Issue

SECUNIA ADVISORY ID:
SA48642

VERIFY ADVISORY:
Secunia.com
https://secunia.com/advisories/48642/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=48642

RELEASE DATE:
2012-04-06

DISCUSS ADVISORY:
https://secunia.com/advisories/48642/#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/48642/

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=48642

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:
Gjoko Krstic has reported a security issue in Zend Optimizer, which
can be exploited by malicious, local users to perform certain actions
with escalated privileges.

The security issue is caused due to the application setting insecure
file system permissions on ZendExtensionManager.dll and
ZendOptimizer.dll, which can be exploited to overwrite the files and
gain escalated privileges.

The security issue is reported in versions 3.3.3 and prior running on
Windows.

SOLUTION:
The vendor has released an updated version 3.3.3.

PROVIDED AND/OR DISCOVERED BY:
Gjoko Krstic, Zero Science Lab.

ORIGINAL ADVISORY:
Gjoko Krstic:
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2012-5083.php

Zend:
https://static.zend.com/topics/Zend-Optimizer-3.3.3-Release-Notes-V2.txt

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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