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CVE-2022-27593: QNAP Photo Station Externally Controlled Reference Vulnerability

criticalknown exploitedpublic exploitCVE-2022-27593
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Certain QNAP NAS running Photo Station with internet exposure contain an externally controlled reference to a resource vulnerability which can allow an attacker to modify system files. This vulnerability was observed being utilized in a Deadbolt ransomware campaign.

CSIRTS triage

vendor: QNAPproduct: Photo StationOther
What
Certain QNAP NAS running Photo Station have an externally controlled reference vulnerability that can allow an attacker to modify system files.
Who is affected
Users of QNAP NAS devices with Photo Station exposed to the internet.
Urgency
Remediation is urgent as this vulnerability has been exploited in ransomware attacks.
Action
Apply the latest updates for QNAP Photo Station and restrict internet exposure.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-09-08
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-27593

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2022-27593coverage & exploitation statusNVD · CVE.org

Recent advisories for QNAP Photo Station

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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