Bug 1609090 (CVE-2018-13796)

Summary:	CVE-2018-13796 mailman: Mishandled URLs in Utils.py:GetPathPieces() allows attackers to display arbitrary text on trusted sites
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jkaluza, pzhukov
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	mailman 2.1.28	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-03-31 22:32:58 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1609091, 1609092, 1611689
Bug Blocks:	1609093

Description Sam Fowler 2018-07-27 01:57:51 UTC

Mailman before version 2.1.28 has a vulnerability in the Utils.py:GetPathPieces() function that allows an attacker to submit URLs with long listnames resulting in arbitrary text to be echoed in "No such list" error responses. This can be used to make a potential victim think the phishing text comes from a trusted site.


Upstream Bug:

https://bugs.launchpad.net/mailman/+bug/1780874


Upstream Patch:

https://launchpadlibrarian.net/379908276/patch.txt


Reference:

https://www.mail-archive.com/mailman-users@python.org/msg71003.html

Comment 1 Sam Fowler 2018-07-27 01:58:26 UTC

Created mailman tracking bugs for this issue:

Affects: fedora-all [bug 1609091]

Comment 5 errata-xmlrpc 2020-03-31 19:17:06 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:1054 https://access.redhat.com/errata/RHSA-2020:1054

Comment 6 Product Security DevOps Team 2020-03-31 22:32:58 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-13796