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Category:   Application (Web Server/CGI)  >   Squid Vendors:   Squid-cache.org
Squid Conditional Request Handling Flaw Lets Remote Users Obtain Potentially Sensitive Information on the Target System
SecurityTracker Alert ID:  1037513
SecurityTracker URL:  http://securitytracker.com/id/1037513
CVE Reference:   CVE-2016-10002   (Links to External Site)
Date:  Dec 21 2016
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.1 - 3.5.22, 4.0 - 4.0.16
Description:   A vulnerability was reported in Squid. A remote user can obtain potentially sensitive information on the target system.

A remote user can send a specially crafted request to trigger a flaw in the processing of conditional requests and cause the target system to return responses containing potentially sensitive information about another client's browsing session. This information may include authentication credentials.

Saulius Lapinskas from Lithuanian State Social Insurance Fund Board reported this vulnerability.

Impact:   A remote user can obtain potentially sensitive information about other user sessions on the target system.
Solution:   The vendor has issued a fix (3.5.23, 4.0.17).

The vendor advisory is available at:

http://www.squid-cache.org/Advisories/SQUID-2016_11.txt

Vendor URL:  www.squid-cache.org/Advisories/SQUID-2016_11.txt (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jan 24 2017 (Red Hat Issues Fix) Squid Conditional Request Handling Flaw Lets Remote Users Obtain Potentially Sensitive Information on the Target System
Red Hat has issued a fix for Red Hat Enterprise Linux 7.
Jan 24 2017 (Red Hat Issues Fix) Squid Conditional Request Handling Flaw Lets Remote Users Obtain Potentially Sensitive Information on the Target System
Red Hat has issued a fix for squid34 for Red Hat Enterprise Linux 6.
Jan 25 2017 (Oracle Issues Fix for Oracle Linux) Squid Conditional Request Handling Flaw Lets Remote Users Obtain Potentially Sensitive Information on the Target System
Oracle has issued a fix for Oracle Linux 7.
Jan 26 2017 (Oracle Issues Fix for Oracle Linux) Squid Conditional Request Handling Flaw Lets Remote Users Obtain Potentially Sensitive Information on the Target System
Oracle has issued a fix for squid34 for Oracle Linux 6.
Jan 27 2017 (CentOS Issues Fix) Squid Conditional Request Handling Flaw Lets Remote Users Obtain Potentially Sensitive Information on the Target System
CentOS has issued a fix for CentOS 7.
Jan 27 2017 (CentOS Issues Fix) Squid Conditional Request Handling Flaw Lets Remote Users Obtain Potentially Sensitive Information on the Target System
CentOS has issued a fix for squid34 for CentOS 6.
Feb 7 2017 (Ubuntu Issues Fix) Squid Conditional Request Handling Flaw Lets Remote Users Obtain Potentially Sensitive Information on the Target System
Ubuntu has issued a fix for Ubuntu Linux 12.04 LTS, 14.04 LTS, 16.04 LTS, and 16.10.



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