Vulnerability Name:

CVE-2019-13226 (CCN-163419)

Assigned:2019-07-04
Published:2019-07-04
Updated:2022-04-18
Summary:deepin-clone before 1.1.3 uses a predictable path /tmp/.deepin-clone/mount/<block-dev-basename> in the Helper::temporaryMountDevice() function to temporarily mount a file system as root. An unprivileged user can prepare a symlink at this location to have the file system mounted in an arbitrary location. By winning a race condition, the attacker can also enter the mount point, thereby preventing a subsequent unmount of the file system.
CVSS v3 Severity:7.0 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.1 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
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)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
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:6.9 Medium (CVSS v2 Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-362
CWE-59
Vulnerability Consequences:File Manipulation
References:Source: MITRE
Type: CNA
CVE-2019-13226

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20190704 deepin-clone: various symlink attacks

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1130388

Source: XF
Type: UNKNOWN
deepinclone-cve201913226-symlink(163419)

Source: CCN
Type: deepin-clone GIT Repository
fix: Do not use the "/tmp" directory

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/linuxdeepin/deepin-clone/commit/e079f3e2712b4f8c28e3e63e71ba1a1f90fce1ab

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2019-3d418f349c

Source: CCN
Type: oss-sec Mailing List, Thu, 4 Jul 2019 14:59:14 +0200
deepin-clone: various symlink attacks

Vulnerable Configuration:Configuration 1:
  • cpe:/a:deepin:deepin-clone:*:*:*:*:*:*:*:* (Version < 1.1.3)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:30:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    deepin deepin-clone *
    fedoraproject fedora 30