Exim MBX Locking Insecure Temporary File Creation Vulnerability

BID:40454

Info

Exim MBX Locking Insecure Temporary File Creation Vulnerability

Bugtraq ID: 40454
Class: Race Condition Error
CVE: CVE-2010-2024
Remote: No
Local: Yes
Published: May 24 2010 12:00AM
Updated: May 07 2015 05:19PM
Credit: Dan Rosenberg
Vulnerable: University of Cambridge Exim 4.60
University of Cambridge Exim 4.52
University of Cambridge Exim 4.43
University of Cambridge Exim 4.42
University of Cambridge Exim 4.41
University of Cambridge Exim 4.40
University of Cambridge Exim 4.34
+ Ubuntu Ubuntu Linux 4.1 ppc
+ Ubuntu Ubuntu Linux 4.1 ia64
+ Ubuntu Ubuntu Linux 4.1 ia32
University of Cambridge Exim 4.33
University of Cambridge Exim 4.32
University of Cambridge Exim 4.21
University of Cambridge Exim 4.20
University of Cambridge Exim 4.10
University of Cambridge Exim 4.71
University of Cambridge Exim 4.66
Ubuntu Ubuntu Linux 9.10 sparc
Ubuntu Ubuntu Linux 9.10 powerpc
Ubuntu Ubuntu Linux 9.10 lpia
Ubuntu Ubuntu Linux 9.10 i386
Ubuntu Ubuntu Linux 9.10 ARM
Ubuntu Ubuntu Linux 9.10 amd64
Ubuntu Ubuntu Linux 8.04 LTS sparc
Ubuntu Ubuntu Linux 8.04 LTS powerpc
Ubuntu Ubuntu Linux 8.04 LTS lpia
Ubuntu Ubuntu Linux 8.04 LTS i386
Ubuntu Ubuntu Linux 8.04 LTS amd64
Ubuntu Ubuntu Linux 6.06 LTS sparc
Ubuntu Ubuntu Linux 6.06 LTS powerpc
Ubuntu Ubuntu Linux 6.06 LTS i386
Ubuntu Ubuntu Linux 6.06 LTS amd64
Ubuntu Ubuntu Linux 10.10 powerpc
Ubuntu Ubuntu Linux 10.10 i386
Ubuntu Ubuntu Linux 10.10 ARM
Ubuntu Ubuntu Linux 10.10 amd64
Ubuntu Ubuntu Linux 10.04 sparc
Ubuntu Ubuntu Linux 10.04 powerpc
Ubuntu Ubuntu Linux 10.04 i386
Ubuntu Ubuntu Linux 10.04 ARM
Ubuntu Ubuntu Linux 10.04 amd64
S.u.S.E. openSUSE 11.3
S.u.S.E. openSUSE 11.2
S.u.S.E. openSUSE 11.1
Gentoo Linux
Not Vulnerable: University of Cambridge Exim 4.72 RC2

Discussion

Exim MBX Locking Insecure Temporary File Creation Vulnerability

Exim creates temporary files in an insecure manner.

An attacker with local access could potentially exploit this issue to perform symbolic-link attacks.

Successfully mounting a symlink attack may allow the attacker to delete or corrupt sensitive files, which may result in a denial of service. Other attacks may also be possible.

Versions prior to Exim 4.72 RC2 are vulnerable.

Exploit / POC

Exim MBX Locking Insecure Temporary File Creation Vulnerability

An attacker uses readily available commands to exploit this issue.

Solution / Fix

Exim MBX Locking Insecure Temporary File Creation Vulnerability

Solution:
Updates are available. Please see the references for more information.


Ubuntu Ubuntu Linux 9.10 sparc

Ubuntu Ubuntu Linux 8.04 LTS powerpc

Ubuntu Ubuntu Linux 8.04 LTS sparc

Ubuntu Ubuntu Linux 9.10 powerpc

Ubuntu Ubuntu Linux 6.06 LTS sparc

Ubuntu Ubuntu Linux 10.10 ARM

Ubuntu Ubuntu Linux 6.06 LTS powerpc

Ubuntu Ubuntu Linux 8.04 LTS amd64

Ubuntu Ubuntu Linux 9.10 lpia

Ubuntu Ubuntu Linux 8.04 LTS lpia

Ubuntu Ubuntu Linux 6.06 LTS i386

Ubuntu Ubuntu Linux 10.10 amd64

Ubuntu Ubuntu Linux 10.04 powerpc

Ubuntu Ubuntu Linux 9.10 i386

Ubuntu Ubuntu Linux 10.04 amd64

Ubuntu Ubuntu Linux 10.10 powerpc

Ubuntu Ubuntu Linux 9.10 ARM

Ubuntu Ubuntu Linux 9.10 amd64

Ubuntu Ubuntu Linux 8.04 LTS i386

Ubuntu Ubuntu Linux 10.04 ARM

Ubuntu Ubuntu Linux 10.10 i386

Ubuntu Ubuntu Linux 10.04 sparc

Ubuntu Ubuntu Linux 10.04 i386

References

Exim MBX Locking Insecure Temporary File Creation Vulnerability

References:

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report