VxWorks 6.x < 6.9.4 Multiple Vulnerabilities (URGENT/11)

Critical Nessus Network Monitor Plugin ID 701084

Synopsis

The remote host is running VxWorks embedded Operating System that is affected by multiple attack vectors.

Description

The version of VxWorks installed on the remote host is 6.x, prior to 6.9.4, and is affected by multiple vulnerabilities :

- A specially crafted TCP-segment with the URG-flag set may cause overflow of the buffer passed to recv(), recvfrom() or recvmsg() socket routines. (CVE-2019-12255)
- A specially crafted IPv4 packet, containing invalid encoded SSRR/LSRR options, may cause call-stack overflow. No specific services beyond IPv4 protocol support is required. (CVE-2019-12257)

Solution

Update to VxWorks version 6.9.4 or later.

See Also

https://www.tenable.com/blog/critical-vulnerabilities-dubbed-urgent11-place-devices-running-vxworks-at-risk-of-rce-attacks

https://armis.com/urgent11

https://www.windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11

Plugin Details

Severity: Critical

ID: 701084

Family: IoT

Published: 2019/07/29

Updated: 2019/07/29

Dependencies: 5622

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Patch Publication Date: 2019/07/19

Vulnerability Publication Date: 2019/07/19

Reference Information

CVE: CVE-2019-12255, CVE-2019-12257