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Category:   Application (Generic)  >   wget Vendors:   GNU [multiple authors]
(Ubuntu Issues Fix) wget Input Validation Flaw in SetCookie Processing Lets Remote Users Inject Arbitrary Cookies on the Target System
SecurityTracker Alert ID:  1040872
SecurityTracker URL:  http://securitytracker.com/id/1040872
CVE Reference:   CVE-2018-0494   (Links to External Site)
Date:  May 9 2018
Impact:   Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.7 - 1.19.4
Description:   A vulnerability was reported in wget. A remote user can set and modify cookies on the target system.

The software does not properly process Set-Cookie responses. A remote server can return specially crafted data to inject arbitrary cookies into the cookie jar file on the target system.

The vendor was notified on April 26, 2018.

The original advisory including demonstration exploit steps is available at:

https://sintonen.fi/advisories/gnu-wget-cookie-injection.txt

Harry Sintonen of F-Secure Corporation reported this vulnerability.

Impact:   A remote user can set and modify cookies on the target system.
Solution:   Ubuntu has issued a fix.

The Ubuntu advisory is available at:

https://usn.ubuntu.com/usn/usn-3643-1

Vendor URL:  usn.ubuntu.com/usn/usn-3643-1 (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Linux (Ubuntu)
Underlying OS Comments:  14.04 LTS, 16.04 LTS, 17.10, 18.04 LTS

Message History:   This archive entry is a follow-up to the message listed below.
May 7 2018 wget Input Validation Flaw in SetCookie Processing Lets Remote Users Inject Arbitrary Cookies on the Target System



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