Vulnerability CVE-2018-16947


Published: 2018-09-11   Modified: 2018-09-12

Description:
An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. The backup tape controller (butc) process accepts incoming RPCs but does not require (or allow for) authentication of those RPCs. Handling those RPCs results in operations being performed with administrator credentials, including dumping/restoring volume contents and manipulating the backup database. For example, an unauthenticated attacker can replace any volume's content with arbitrary data.

Type:

CWE-287

(Improper Authentication)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Openafs -> Openafs 
Debian -> Debian linux 

 References:
http://openafs.org/pages/security/OPENAFS-SA-2018-001.txt
https://lists.debian.org/debian-lts-announce/2018/09/msg00024.html
https://www.debian.org/security/2018/dsa-4302

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