CVE-2018-16947

Debian Security Advisory 4302-1

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se ha descubierto un problema en OpenAFS, en versiones anteriores a la 1.6.23 y versiones 1.8.x anteriores a la 1.8.2. El proceso butc (backup tape controller) acepta los RPC entrantes, pero no requiere (ni permite) la autenticación de dichos RPC. El manejo de los RPC resulta en que las operaciones se realizan con credenciales de administrador, incluyendo el contenido de los volúmenes dumping/restoring y en que se manipula la base de datos de backups. Por ejemplo, un atacante no autenticado puede reemplazar el contenido de cualquier volumen con datos arbitrarios.

Several vulnerabilities were discovered in openafs, an implementation of the distributed filesystem AFS.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-09-11 CVE Reserved
2018-09-12 CVE Published
2024-06-27 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (3)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2018/09/msg00024.html	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://openafs.org/pages/security/OPENAFS-SA-2018-001.txt	2019-10-03
https://www.debian.org/security/2018/dsa-4302	2019-10-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Openafs Search vendor "Openafs"		Openafs Search vendor "Openafs" for product "Openafs"				< 1.6.23 Search vendor "Openafs" for product "Openafs" and version " < 1.6.23"		-		Affected
Openafs Search vendor "Openafs"		Openafs Search vendor "Openafs" for product "Openafs"				>= 1.8.0 < 1.8.2 Search vendor "Openafs" for product "Openafs" and version " >= 1.8.0 < 1.8.2"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected