Vulnerability Name:

CVE-2011-0542 (CCN-69651)

Assigned:2010-11-02
Published:2010-11-02
Updated:2023-02-13
Summary:fusermount in fuse 2.8.5 and earlier does not perform a chdir to / before performing a mount or umount, which allows local users to unmount arbitrary directories via unspecified vectors.
CVSS v3 Severity:4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:3.3 Low (CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:P/A:P)
2.5 Low (Temporal CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N)
1.6 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
2.6 Low (REDHAT CVSS v2 Vector: AV:L/AC:H/Au:N/C:N/I:P/A:P)
1.9 Low (REDHAT Temporal CVSS v2 Vector: AV:L/AC:H/Au:N/C:N/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2011-0542

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: CCN
Type: FUSE GIT Repository
FUSE

Source: CCN
Type: RHSA-2011-1083
Moderate: fuse security update

Source: secalert@redhat.com
Type: Patch
secalert@redhat.com

Source: secalert@redhat.com
Type: Patch
secalert@redhat.com

Source: secalert@redhat.com
Type: Patch
secalert@redhat.com

Source: CCN
Type: OSVDB ID: 74708
Fuse Unspecified Timing Attack Current Directory Manipulation Weakness

Source: XF
Type: UNKNOWN
fuse-fusermount-sec-bypass(69651)

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:6:*:*:*:*:*:*:*
    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:6::server:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:fuse:fuse:2.8.5:*:*:*:*:*:*:*
  • AND
  • cpe:/o:redhat:enterprise_linux:6:*:server:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:6:*:workstation:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_desktop:6:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_hpc_node:6:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_server_eus:6.1.z:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.mitre.oval:def:13431
    P
    		USN-1077-1 -- fuse vulnerabilities
    2014-07-07
    oval:org.mitre.oval:def:23608
    P
    		ELSA-2011:1083: fuse security update (Moderate)
    2014-05-26
    oval:org.mitre.oval:def:21871
    P
    		RHSA-2011:1083: fuse security update (Moderate)
    2014-02-24
    oval:com.redhat.rhsa:def:20111083
    P
    		RHSA-2011:1083: fuse security update (Moderate)
    2011-07-20
    BACK
    fuse fuse 2.8.5
    redhat enterprise linux 6
    redhat enterprise linux 6
    redhat enterprise linux desktop 6
    redhat enterprise linux hpc node 6
    redhat enterprise linux server eus 6.1.z