Bug 570381 – CVE-2010-0792 fcron: unauthorized disclosure of user crontabs

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Bug 570381 - (CVE-2010-0792) CVE-2010-0792 fcron: unauthorized disclosure of user crontabs

Summary:	CVE-2010-0792 fcron: unauthorized disclosure of user crontabs

Status:	CLOSED ERRATA

Aliases:	CVE-2010-0792

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

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

URL:	http://web.nvd.nist.gov/view/vuln/det...
Whiteboard:	impact=low,source=vendor-sec,reported...
Keywords:	Security

Depends On:	570382
Blocks:
	Show dependency tree / graph

Reported:	2010-03-04 00:12 EST by Vincent Danen
Modified:	2015-07-31 02:25 EDT (History)
CC List:	2 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2010-06-25 05:55:17 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Description Vincent Danen 2010-03-04 00:12:30 EST

Dan Rosenberg discovered several race condition vulnerabilities in fcrontab,
part of the fcron scheduler, that could allow a local attacker to use symbolic
links to read unauthorized files.  If fcrontab is installed setuid root, an 
attacker can read arbitrary files, but when installed with its own group (i.e.
'fcron'), an attacker can only read other non-root users' crontabs and fcron 
configuration files.

On Fedora, fcrontab is setuid fcron, which lessens the impact.

Upstream has released fcron 3.0.5 to correct this issue.

Comment 2 Fedora Update System 2010-03-08 08:11:57 EST

fcron-3.0.5-1.fc13 has been submitted as an update for Fedora 13.
http://admin.fedoraproject.org/updates/fcron-3.0.5-1.fc13

Comment 3 Fedora Update System 2010-03-08 08:12:04 EST

fcron-3.0.5-1.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/fcron-3.0.5-1.fc12

Comment 4 Fedora Update System 2010-03-26 21:01:07 EDT

fcron-3.0.5-1.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2010-04-01 13:18:53 EDT

fcron-3.0.5-1.fc13 has been pushed to the Fedora 13 stable repository.  If problems still persist, please make note of it in this bug report.

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