UK and US cybersecurity and intelligence agencies have reported that Russian nation-state actors have been exploiting now-patched flaws in Cisco networking equipment to perform reconnaissance and deploy malware against a small number of entities in Europe, US government institutions, and 250 Ukrainian targets.
The threat actor has been identified as APT28, and the malicious software deployed is called Jaguar Tooth.
The attack has been linked to a buffer overflow condition in the Simple Network Management Protocol (SNMP) subsystem in Cisco IOS and IOS XE Software.
Cisco Talos has warned that these attacks are part of a broader campaign targeting aging networking appliances and software from a variety of vendors to achieve espionage objectives or pre-position for future destructive activity.
Organizations are recommended to update to the latest firmware, switch from SNMP to NETCONF or RESTCONF for network management, and practice robust patch management to protect against threats.
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