Bug 1960332 (CVE-2021-32917)

Summary:	CVE-2021-32917 prosody: use of mod_proxy65 is unrestricted in default configuration
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	jkaluza, redhat-bugzilla
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-05-13 20:33:42 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:	1960333, 1960353
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2021-05-13 17:05:48 UTC

mod_proxy65 is a file transfer proxy provided with Prosody to facilitate the transfer of files and other data between XMPP clients.
It was discovered that the proxy65 component of Prosody allows open access by default, even if neither of the users have an XMPP account on the local server, allowing unrestricted use of the server’s bandwidth.

The default configuration does not enable mod_proxy65 and is not affected.
With mod_proxy65 enabled, all configurations without a ‘proxy65_acl’ setting configured are affected.

Reference:
https://prosody.im/security/advisory_20210512/

Comment 1 Guilherme de Almeida Suckevicz 2021-05-13 17:06:02 UTC

Created prosody tracking bugs for this issue:

Affects: fedora-all [bug 1960333]

Comment 2 Robert Scheck 2021-05-13 17:12:17 UTC

Well, this also affects epel-all

Comment 3 Guilherme de Almeida Suckevicz 2021-05-13 17:21:05 UTC

Created prosody tracking bugs for this issue:

Affects: epel-all [bug 1960353]

Comment 4 Product Security DevOps Team 2021-05-13 20:33:42 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.