From CISA, December 5:
Today, CISA released a Cybersecurity Advisory (CSA), Threat Actors Exploit Adobe ColdFusion CVE-2023-26360 for Initial Access to Government Servers, to disseminate known indicators of compromise (IOCs) and tactics, techniques, and procedures (TTPs). The vulnerability in ColdFusion (CVE-2023-26360) presents as an improper access control issue and exploitation of this CVE can result in arbitrary code execution.
CISA encourages network defenders and critical infrastructure organizations to review the CSA to improve their cybersecurity posture and protect against similar exploitation based on threat actor activity. CISA also urges software manufacturers to incorporate secure-by-design and -default principles into their software development practices to limit the impact of threat actor activity.
For more guidance to protect against the most common and impactful threats, visit CISA’s Cross-Sector Cybersecurity Performance Goals. For more information on Secure by Design, see CISA’s Secure by Design webpage.
SUMMARY
The Cybersecurity and Infrastructure Security Agency (CISA) is releasing a Cybersecurity Advisory (CSA) in response to confirmed exploitation of CVE-2023-26360 by unidentified threat actors at a Federal Civilian Executive Branch (FCEB) agency. This vulnerability presents as an improper access control issue impacting Adobe ColdFusion versions 2018 Update 15 (and earlier) and 2021 Update 5 (and earlier). CVE-2023-26360 also affects ColdFusion 2016 and ColdFusion 11 installations; however, they are no longer supported since they reached end of life. Exploitation of this CVE can result in arbitrary code execution. Following the FCEB agency’s investigation, analysis of network logs confirmed the compromise of at least two public-facing servers within the environment between June and July 2023.
This CSA provides network defenders with tactics, techniques, and procedures (TTPs), indicators of compromise (IOCs), and methods to detect and protect against similar exploitation.
Read the full advisory at https://www.cisa.gov/news-events/cybersecurity-advisories/aa23-339a or download the .pdf version of the report.
