Outbreak Alert
Public 0-day exploit allows domain takeover
A remote code execution vulnerability exists in Windows OS when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Microsoft is encouraging customers to either "Disable the Print Spooler service" or "Disable inbound remote printing through Group Policy". Learn More »
Common Vulnerabilities and Exposures
Background
On June 30, it was disclosed that the technical details and a proof-of-concept (PoC) exploit have been accidentally leaked for a currently unpatched vulnerability in Windows that allows remote code execution. Despite the need for authentication, the severity of the issue is critical as threat actors can use it to take over a Windows domain server to easily deploy malware across a company’s network. The issue affects Windows Print Spooler and the researchers named it PrintNightmare.
Threat Radar Overall Score:
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CVSS Rating | 8.0 |
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FortiRecon Score | 92/100 |
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Known Exploited | Yes |
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Exploit Prediction Score | 96.73% |
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FortiGuard Telemetry | 7 |
Latest Development
Recent news and incidents related to cybersecurity threats encompassing various events such as data breaches, cyber-attacks, security incidents, and vulnerabilities discovered.
June 30: Initial details emerge
https://www.bleepingcomputer.com/news/security/public-windows-printnightmare-0-day-exploit-allows-domain-takeover/
March 15, 2022 - CISA reported that Russian state sponsored hackers have exploited this vulnerability in combination with default Mutli-Factor Authentication protocols to gain access to cloud and email accounts for document exfiltration. -
https://www.cisa.gov/uscert/ncas/alerts/aa22-074a
July 7, 2021- Full patch / fix released -
https://www.bleepingcomputer.com/news/security/microsoft-printnightmare-now-patched-on-all-windows-versions/
July 6, 2021 - Microsoft released a security patch (found later to be a partial fix) -
https://us-cert.cisa.gov/ncas/current-activity/2021/07/06/microsoft-releases-out-band-security-updates-printnightmare
July 2, 2021 - Microsoft is investigating the vulnerability and assigned a CVE to the vulnerability -
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34527
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Threat Intelligence
Information gathered from analyzing ongoing cybersecurity events including threat actors, their tactics, techniques, and procedures (TTPs), indicators of compromise (IOCs), malware and related vulnerabilities.
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References
Sources of information in support and relation to this Outbreak and vendor.