Rewterz Threat Advisory – CVE-2020-10188 – Telnet Vulnerability Affecting Cisco Products

Severity

High

Analysis Summary

utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a buffer overflow involving the netclear and nextitem functions.

Impact

Execution of arbitrary code

Affected Vendors

Cisco

Affected Products

Cisco IOS XE Software

Remediation

Refer to vendor advisory for the list of affected products and upgraded patches.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-telnetd-EFJrEzPx

Reading this advisory was a good start.

Make it a habit.

Rewterz publishes threat advisories ahead of mainstream cybersecurity media, informed by an AI-Native Autonomous SOC that sees regional threat actor activity in real time. Subscribe to receive each new advisory as it publishes, plus a monthly Middle East threat landscape brief drawn from our own SOC telemetry. For teams evaluating their detection coverage, a 30-minute consultation with a senior analyst is also available, at your pace, when you're ready.

Request a demo