PT-2018-13637 · Amazon Web Services+1 · Freertos+1

Ori Karliner · Published 2018-12-06 · Updated 2019-01-04 · CVE-2018-16598

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Amazon Web Services (AWS) FreeRTOS versions through 1.3.1 FreeRTOS versions up to V10.0.1 WITTENSTEIN WHIS Connect middleware TCP/IP component (affected versions not specified)

Description The issue allows any received DNS response to be accepted without confirming it matches a sent DNS request. This is due to the functions xProcessReceivedUDPPacket and prvParseDNSReply not properly validating DNS responses.

Recommendations For Amazon Web Services (AWS) FreeRTOS versions through 1.3.1, update to a version that includes the necessary patches to validate DNS responses. For FreeRTOS versions up to V10.0.1, update to a version that includes the necessary patches to validate DNS responses. For WITTENSTEIN WHIS Connect middleware TCP/IP component, at the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Weakness Enumeration

CWE-441

Related Identifiers

CVE-2018-16598

Affected Products

Freertos

Wittenstein Whis Connect Middleware

References · 6

• https://osv.dev/vulnerability/CVE-2018-16598 · Vendor Advisory
• https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-details · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2018-16598 · Security Note
• https://github.com/aws/amazon-freertos/blob/v1.3.2/CHANGELOG.md · Note
• https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-put-wide-range-devices-risk-compromise-smart-homes-critical-infrastructure-systems · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16598 · Note