Bug 1609090 – CVE-2018-13796 mailman: Mishandled URLs in Utils.py:GetPathPieces() allows attackers to display arbitrary text on trusted sites

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Bug 1609090 - (CVE-2018-13796) CVE-2018-13796 mailman: Mishandled URLs in Utils.py:GetPathPieces() allows attackers to display arbitrary text on trusted sites

Summary:	CVE-2018-13796 mailman: Mishandled URLs in Utils.py:GetPathPieces() allows at...

Status:	NEW

Aliases:	CVE-2018-13796

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:
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URL:
Whiteboard:	impact=moderate,public=20180723,repor...
Keywords:	Security

Depends On:	1609092 1611689 1609091
Blocks:	1609093
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Reported:	2018-07-26 21:57 EDT by Sam Fowler
Modified:	2018-08-02 12:01 EDT (History)
CC List:	2 users (show)

See Also:
Fixed In Version:	mailman 2.1.28
Doc Type:	If docs needed, set a value
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RHEL 7.3 requirements from Atomic Host:
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Description Sam Fowler 2018-07-26 21:57:51 EDT

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 2018-07-26 21:58:26 EDT

Created mailman tracking bugs for this issue:

Affects: fedora-all [bug 1609091]

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