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ACal "ACalAuthenticate" Authentication Bypass Vulnerability
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Secunia Advisory:
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SA18432
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Release Date:
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2006-01-12
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Last Update:
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2006-08-07
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Critical:
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Highly critical
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Impact:
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Security Bypass
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | ACal 2.x
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| | CVE reference: | CVE-2006-0182 (Secunia mirror)
CVE-2006-0183 (Secunia mirror)
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Description:
Aliaksandr Hartsuyeu has discovered a vulnerability in ACal, which can be exploited by malicious people to bypass certain security restrictions and compromise a vulnerable system.
The vulnerability is caused due to an insecure authentication process. This can be exploited to access the administration section by setting the "ACalAuthenticate" cookie parameter to "inside".
This can further be exploited to inject and execute arbitrary PHP code by manipulating the header and footer files.
The vulnerability has been confirmed in version 2.2.5. Other versions may also be affected.
Solution:
Update to version 2.2.6.
http://acalproj.sourceforge.net/download.php
Provided and/or discovered by:
Aliaksandr Hartsuyeu
Changelog:
2006-03-06: Updated "Solution" section.
2006-08-04: Added CVE reference.
2006-08-07: Added CVE reference.
Original Advisory:
http://evuln.com/vulns/25/summary.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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1 Related Secunia Security Advisories
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1. ACal "path" File Inclusion Vulnerability
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