Vulnerability CVE-2019-13228


Published: 2019-07-04

Description:
deepin-clone before 1.1.3 uses a fixed path /tmp/repo.iso in the BootDoctor::fix() function to download an ISO file, and follows symlinks there. An unprivileged user can prepare a symlink attack there to create or overwrite files in arbitrary file system locations. The content is not attacker controlled. By winning a race condition to replace the /tmp/repo.iso symlink by an attacker controlled ISO file, further privilege escalation may be possible.

Type:

CWE-59

(Improper Link Resolution Before File Access ('Link Following'))

CVSS2 => (AV:L/AC:M/Au:N/C:P/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.6/10
9.5/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Complete
Complete

 References:
http://www.openwall.com/lists/oss-security/2019/07/04/1
https://bugzilla.suse.com/show_bug.cgi?id=1130388
https://github.com/linuxdeepin/deepin-clone/commit/e079f3e2712b4f8c28e3e63e71ba1a1f90fce1ab
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TCHGRJV5CWTMYEE5B5C2FNMCFVP45S7H/

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