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Category:   Application (Web Server/CGI)  >   lighttpd Vendors:   Kneschke, J.
lighttpd Input Validation Flaw Lets Remote Users Inject Log File Entries
SecurityTracker Alert ID:  1032405
SecurityTracker URL:  http://securitytracker.com/id/1032405
CVE Reference:   CVE-2015-3200   (Links to External Site)
Date:  May 26 2015
Impact:   Modification of system information
Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 1.4.35
Description:   A vulnerability was reported in lighttpd. A remote user can inject log file entries.

The software does not properly validate user-supplied input. A remote user can supply a specially crafted basic HTTP authentication string to cause lines to be injected into the log file.

The vulnerability resides in 'http_auth.c'.

The original advisory is available at:

http://jaanuskp.blogspot.com/2015/05/cve-2015-3200.html

Jaanus Kaap reported this vulnerability.

Impact:   A remote user can inject log file entries.
Solution:   No solution was available at the time of this entry.

The vendor has issued a proposed fix in their bug report, available at:

http://redmine.lighttpd.net/issues/2646

Vendor URL:  www.lighttpd.net (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


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