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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.nix:def:13736
[Eng]
Version
9
Class
patch
ALTXid
27409
Language
Russian
Severity
NotAvailable
Title
Обновление USN-1060-1 -- уязвимости exim4
Description
It was discovered that Exim contained a design flaw in the way it processed alternate configuration files. An attacker that obtained privileges of the "Debian-exim" user could use an alternate configuration file to obtain root privileges. It was discovered that Exim incorrectly handled certain return values when handling logging. A local attacker could use this flaw to obtain root privileges. Dan Rosenberg discovered that Exim incorrectly handled writable sticky-bit mail directories. If Exim were configured in this manner, a local user could use this flaw to cause a denial of service or possibly gain privileges. This issue only applied to Ubuntu 6.06 LTS, 8.04 LTS, 9.10, and 10.04 LTS. Dan Rosenberg discovered that Exim incorrectly handled MBX locking. If Exim were configured in this manner, a local user could use this flaw to cause a denial of service or possibly gain privileges. This issue only applied to Ubuntu 6.06 LTS, 8.04 LTS, 9.10, and 10.04 LTS
Family
unix
Platform
Ubuntu 10.04
Ubuntu 10.10
Ubuntu 6.06
Ubuntu 8.04
Ubuntu 9.10
Product
exim4
Reference
VENDOR: USN-1060-1
VENDOR: USN-1060-1
Id:
USN-1060-1
Reference:
https://usn.ubuntu.com/usn/usn-1060-1
CVE: CVE-2010-2024
CVE: CVE-2010-2024
Id:
CVE-2010-2024
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2024
Comment
: transports/appendfile.c in Exim before 4.72, when MBX locking is enabled, allows local users to change permissions of arbitrary files or create arbitrary files, and cause a denial of service or possibly gain privileges, via a symlink attack on a lockfile in /tmp/.
CVSSv2 Score:
4.4
Access vector:
LOCAL
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:M/Au:N/C:P/I:P/A:P
CWE:
362 (Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'))
References:
40019 (SECUNIA)
http://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.25&r2=1.26 (CONFIRM)
20100603 Multiple vulnerabilities in Exim (FULLDISC)
http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2 (CONFIRM)
[exim-dev] 20100524 Security issues in exim4 local delivery (MLIST)
https://bugzilla.redhat.com/show_bug.cgi?id=600097 (CONFIRM)
http://bugs.exim.org/show_bug.cgi?id=989 (CONFIRM)
ADV-2010-1402 (VUPEN)
40454 (BID)
FEDORA-2010-9524 (FEDORA)
40123 (SECUNIA)
FEDORA-2010-9506 (FEDORA)
SUSE-SR:2010:014 (SUSE)
USN-1060-1 (UBUNTU)
ADV-2011-0364 (VUPEN)
43243 (SECUNIA)
exim-mbx-symlink(59042) (XF)
20100603 Multiple vulnerabilities in Exim (BUGTRAQ)
CVE: CVE-2010-2023
CVE: CVE-2010-2023
Id:
CVE-2010-2023
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2023
Comment
: transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink field of mailbox files, which allows local users to cause a denial of service or possibly gain privileges by creating a hard link to another user's file.
CVSSv2 Score:
4.4
Access vector:
LOCAL
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:M/Au:N/C:P/I:P/A:P
CWE:
362 (Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'))
References:
[exim-dev] 20100524 Security issues in exim4 local delivery (MLIST)
https://bugzilla.redhat.com/show_bug.cgi?id=600093 (CONFIRM)
http://bugs.exim.org/show_bug.cgi?id=988 (CONFIRM)
20100603 Multiple vulnerabilities in Exim (FULLDISC)
40019 (SECUNIA)
http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2 (CONFIRM)
40451 (BID)
http://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.24&r2=1.25 (CONFIRM)
FEDORA-2010-9524 (FEDORA)
ADV-2010-1402 (VUPEN)
FEDORA-2010-9506 (FEDORA)
40123 (SECUNIA)
SUSE-SR:2010:014 (SUSE)
USN-1060-1 (UBUNTU)
43243 (SECUNIA)
ADV-2011-0364 (VUPEN)
exim-mail-directory-priv-escalation(59043) (XF)
20100603 Multiple vulnerabilities in Exim (BUGTRAQ)
CVE: CVE-2011-0017
CVE: CVE-2011-0017
Id:
CVE-2011-0017
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0017
Comment
: The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.
CVSSv2 Score:
6.9
Access vector:
LOCAL
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:L/AC:M/Au:N/C:C/I:C/A:C
CWE:
20 (Improper Input Validation)
References:
ADV-2011-0224 (VUPEN)
ADV-2011-0245 (VUPEN)
46065 (BID)
43128 (SECUNIA)
ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.74 (CONFIRM)
70696 (OSVDB)
43101 (SECUNIA)
DSA-2154 (DEBIAN)
[exim-announce] 20110125 Exim 4.74 Release (MLIST)
43243 (SECUNIA)
ADV-2011-0364 (VUPEN)
USN-1060-1 (UBUNTU)
SUSE-SR:2011:004 (SUSE)
ADV-2011-0464 (VUPEN)
exim-openlog-privilege-escalation(65028) (XF)
CVE: CVE-2010-4345
CVE: CVE-2010-4345
Id:
CVE-2010-4345
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4345
Comment
: Exim 4.72 and earlier allows local users to gain privileges by leveraging the ability of the exim user account to specify an alternate configuration file with a directive that contains arbitrary commands, as demonstrated by the spool_directory directive.
CVSSv2 Score:
6.9
Access vector:
LOCAL
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:L/AC:M/Au:N/C:C/I:C/A:C
CWE:
264 (Permissions, Privileges, and Access Controls)
References:
[oss-security] 20101210 Exim remote root (MLIST)
[exim-dev] 20101209 Re: [Exim-maintainers] Remote root vulnerability in Exim (MLIST)
https://bugzilla.redhat.com/show_bug.cgi?id=662012 (CONFIRM)
[exim-dev] 20101207 Remote root vulnerability in Exim (MLIST)
http://www.theregister.co.uk/2010/12/11/exim_code_execution_peril/ (MISC)
[exim-dev] 20101210 Re: Remote root vulnerability in Exim (MLIST)
http://bugs.exim.org/show_bug.cgi?id=1044 (CONFIRM)
http://www.metasploit.com/modules/exploit/unix/smtp/exim4_string_format (MISC)
SUSE-SA:2010:059 (SUSE)
ADV-2010-3204 (VUPEN)
VU#758489 (CERT-VN)
ADV-2010-3171 (VUPEN)
DSA-2131 (DEBIAN)
42576 (SECUNIA)
http://www.cpanel.net/2010/12/critical-exim-security-update.html (CONFIRM)
45341 (BID)
1024859 (SECTRACK)
ADV-2011-0135 (VUPEN)
42930 (SECUNIA)
RHSA-2011:0153 (REDHAT)
ADV-2011-0245 (VUPEN)
43128 (SECUNIA)
DSA-2154 (DEBIAN)
USN-1060-1 (UBUNTU)
43243 (SECUNIA)
ADV-2011-0364 (VUPEN)
20101213 Exim security issue in historical release (BUGTRAQ)
[oss-security] 20210504 21Nails: Multiple vulnerabilities in Exim (MLIST)
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