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: 7/29/2019

Updated: 7/29/2019

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS v3

Risk Factor: Critical

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: 7/19/2019

Vulnerability Publication Date: 7/19/2019

Reference Information

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