Bug 2065721 (CVE-2019-7282)

Summary:	CVE-2019-7282 netkit-rsh: rcp access restriction bypass
Product:	[Other] Security Response	Reporter:	Patrick Del Bello <pdelbell>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	luhliari, mruprich, msekleta, vonsch
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in rsh. The vulnerability occurs due to bypass restrictions via the filename of [.] or an empty filename. This flaw allows an attacker to modify the permissions of the target directory on the client-side.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-04-01 11:25:29 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:	2065722, 2065723
Bug Blocks:	2065724

Description Patrick Del Bello 2022-03-18 15:03:01 UTC

In NetKit through 0.17, rcp.c in the rcp client allows remote rsh servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side. This is similar to CVE-2018-20685.

https://bugs.debian.org/920486
https://lists.debian.org/debian-lts-announce/2021/11/msg00016.html
https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt

Comment 1 Patrick Del Bello 2022-03-18 15:03:19 UTC

Created rsh tracking bugs for this issue:

Affects: epel-all [bug 2065722]
Affects: fedora-all [bug 2065723]

Comment 2 Product Security DevOps Team 2022-04-01 11:25:27 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-2019-7282