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Attacks/Breaches

2 MIN READ

Quick Hits



CISA: SOLARWINDS NOT THE ONLY INITIAL ATTACK VECTOR IN MASSIVE BREACH

Agency says it has "evidence of additional initial access vectors" besides
SolarWinds' Orion software.
Dark Reading Staff
Dark Reading
December 18, 2020
PDF


In yet another twist to the recently revealed major cyber espionage campaign
waged by apparent Russian nation-state actors, SolarWinds' network management
platform was not the only initial infection vector for the sophisticated
attacks, according to the US Department of Homeland Security's Cybersecurity and
Infrastructure Security Agency (CISA).



CISA revealed that juicy tidbit today in a cyber activity alert that calls the
attacks a "grave risk" to government agencies, critical infrastructure
organizations, and the private sector. The SolarWinds Orion network management
platform initially was thought to be the main attack vector; the attackers
injected malware into the SolarWinds application, so when users installed an
update, they were infected with the stealthy code.

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"CISA has evidence of additional initial access vectors, other than the
SolarWinds Orion platform; however, these are still being investigated. CISA
will update this Alert as new information becomes available," the agency said in
the report.

The agency is investigating incidents where victims were compromised in the same
campaign but without the malicious Orion code. They also point to security
vendor Volexity's report of a think tank that was compromised via an attack that
bypassed Duo and other multifactor authentication to reach its Outlook Web App.

"Volexity attributes this intrusion to the same activity as the SolarWinds Orion
supply chain compromise, and the TTPs are consistent between the two. This
observation indicates that there are other initial access vectors beyond
SolarWinds Orion, and there may still be others that are not yet known," CISA
said. 



Duo, meanwhile, said the incidents described in the Volexity report "were not
due to any vulnerability in Duo's products." The attacker was able to gain
privileged access to the OWA integration credentials from "within an existing
compromised customer environment, such as an email server," according to Duo.

CISA reiterated the seriousness of the overall attack campaign: "This is a
patient, well-resourced, and focused adversary that has sustained long duration
activity on victim networks. Organizations with suspected compromises need to be
highly conscious of operational security, including when engaging in incident
response activities and planning and implementing remediation plans."

The attack first was exposed earlier this month when FireEye revealed it had
detected a breach that also pilfered its red-team tools.



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