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Vulnerability Details : CVE-2010-0789

fusermount in FUSE before 2.7.5, and 2.8.x before 2.8.2, allows local users to unmount an arbitrary FUSE filesystem share via a symlink attack on a mountpoint.
Publish Date : 2010-03-02 Last Update Date : 2010-06-23
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- CVSS Scores & Vulnerability Types

CVSS Score
3.3
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 59

- Vendor Statements

Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2010-0789 This issue affects Red Hat Enterprise Linux 5 because it ships fusermount suid root, however the impact of this flaw is minimized due to the fact that only members in group fuse may use it the executable is owned root:fuse and mode 4750. Red Hat Enterprise Linux 3 and 4 do not provide the fuse package. The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw. More information regarding issue severity can be found here: http://www.redhat.com/security/updates/classification/
Source: Redhat

- Related OVAL Definitions

Title Definition Id Class Family
CVE-2010-0789 oval:org.opensuse.security:def:20100789 unix
USN-892-1 -- fuse vulnerability oval:org.mitre.oval:def:13087 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2010-0789

# Product Type Vendor Product Version Update Edition Language
1 Application Fuse Fuse 1.9 Version Details Vulnerabilities
2 Application Fuse Fuse 2.0 Pre0 Version Details Vulnerabilities
3 Application Fuse Fuse 2.0 Pre1 Version Details Vulnerabilities
4 Application Fuse Fuse 2.1 Version Details Vulnerabilities
5 Application Fuse Fuse 2.2 Version Details Vulnerabilities
6 Application Fuse Fuse 2.2.1 Version Details Vulnerabilities
7 Application Fuse Fuse 2.3 RC1 Version Details Vulnerabilities
8 Application Fuse Fuse 2.3 PRE Version Details Vulnerabilities
9 Application Fuse Fuse 2.3.0 Version Details Vulnerabilities
10 Application Fuse Fuse 2.4.0 Version Details Vulnerabilities
11 Application Fuse Fuse 2.4.1 Version Details Vulnerabilities
12 Application Fuse Fuse 2.4.2 Version Details Vulnerabilities
13 Application Fuse Fuse 2.5.0 Version Details Vulnerabilities
14 Application Fuse Fuse 2.5.1 Version Details Vulnerabilities
15 Application Fuse Fuse 2.5.2 Version Details Vulnerabilities
16 Application Fuse Fuse 2.5.3 Version Details Vulnerabilities
17 Application Fuse Fuse 2.6.0 Version Details Vulnerabilities
18 Application Fuse Fuse 2.6.1 Version Details Vulnerabilities
19 Application Fuse Fuse 2.6.3 Version Details Vulnerabilities
20 Application Fuse Fuse 2.6.5 Version Details Vulnerabilities
21 Application Fuse Fuse 2.7.0 Version Details Vulnerabilities
22 Application Fuse Fuse 2.7.1 Version Details Vulnerabilities
23 Application Fuse Fuse 2.7.2 Version Details Vulnerabilities
24 Application Fuse Fuse 2.7.3 Version Details Vulnerabilities
25 Application Fuse Fuse 2.7.4 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Fuse Fuse 25

- References For CVE-2010-0789

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=567633 CONFIRM
http://lists.fedoraproject.org/pipermail/package-announce/2010-February/034518.html
FEDORA FEDORA-2010-1140
http://lists.fedoraproject.org/pipermail/package-announce/2010-February/034580.html
FEDORA FEDORA-2010-1159
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00003.html
SUSE SUSE-SR:2010:003
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
SUSE SUSE-SR:2010:011
http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
SUSE SUSE-SR:2010:013
http://secunia.com/advisories/38261
SECUNIA 38261
http://secunia.com/advisories/38287
SECUNIA 38287
http://secunia.com/advisories/38359
SECUNIA 38359
https://bugzilla.redhat.com/show_bug.cgi?id=558833 CONFIRM
http://secunia.com/advisories/38437
SECUNIA 38437
http://sourceforge.net/projects/fuse/files/ReleaseNotes/fuse-2.8.3.html/view CONFIRM
http://www.ubuntu.com/usn/USN-892-1
UBUNTU USN-892-1
http://xforce.iss.net/xforce/xfdb/55945
XF fuse-fusermount-dos(55945)
http://www.vupen.com/english/advisories/2010/1107
VUPEN ADV-2010-1107
http://www.securityfocus.com/bid/37983
BID 37983 FUSE 'fusermount' Race Condition Vulnerability Release Date:2010-06-15
http://www.debian.org/security/2010/dsa-1989
DEBIAN DSA-1989
http://sourceforge.net/projects/fuse/files/fuse-2.X/2.7.5/fuse-2.7.5.tar.gz/download CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=532940 CONFIRM

- Metasploit Modules Related To CVE-2010-0789

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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