Bug 1575634 – CVE-2018-0494 wget: Cookie injection allows malicious website to write arbitrary cookie entries into cookie jar

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Bug 1575634 - (CVE-2018-0494) CVE-2018-0494 wget: Cookie injection allows malicious website to write arbitrary cookie entries into cookie jar

Summary:	CVE-2018-0494 wget: Cookie injection allows malicious website to write arbitr...

Status:	NEW

Aliases:	CVE-2018-0494

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20180506,repor...
Keywords:	Security

Depends On:	1575636 1575635 1576104 1576105 1576106
Blocks:	1575637
	Show dependency tree / graph

Reported:	2018-05-07 09:36 EDT by Adam Mariš
Modified:	2018-10-30 03:25 EDT (History)
CC List:	4 users (show)

See Also:
Fixed In Version:	wget 1.19.5
Doc Type:	If docs needed, set a value
Doc Text:	A cookie injection flaw was found in wget. An attacker can create a malicious website which, when accessed, overrides cookies belonging to arbitrary domains.
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Last Closed:
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CRM:
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:3052	None	None	None	2018-10-30 03:25 EDT

Groups: None (edit)

Description Adam Mariš 2018-05-07 09:36:24 EDT

It was found that GNU Wget is susceptible to a malicious web server injecting arbitrary cookies to the cookie jar file.

Normally a website should not be able to set cookies for other domains. Due to insufficient input validation GNU Wget can be tricked into storing arbitrary cookie values to the cookie jar file, bypassing this security restriction.

An external attacker is able to inject arbitrary cookie values into cookie jar file, adding new or replacing existing cookie values.

Upstream patch:

https://git.savannah.gnu.org/cgit/wget.git/commit/?id=1fc9c95ec144499e69dc8ec76dbe07799d7d82cd

References (PoC included):

http://openwall.com/lists/oss-security/2018/05/06/1

Comment 1 Adam Mariš 2018-05-07 09:36:49 EDT

Created wget tracking bugs for this issue:

Affects: fedora-all [bug 1575635]

Comment 6 errata-xmlrpc 2018-10-30 03:25:05 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3052 https://access.redhat.com/errata/RHSA-2018:3052

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