Patchfirst
CVE-2022-27593 KEVRansomwarePublic exploit Critical · 9.1 EPSS 87.9%

QNAP Photo Station Externally Controlled Reference Vulnerability

QNAP · Photo Station

Summary

An externally controlled reference to a resource flaw in QNAP Photo Station, the photo management application running on QNAP NAS devices, can be exploited to modify system files. The attack vector indicates it is reachable over the network with low complexity and requires no privileges or user interaction.

Official description · NVD

An externally controlled reference to a resource vulnerability has been reported to affect QNAP NAS running Photo Station. If exploited, This could allow an attacker to modify system files. We have already fixed the vulnerability in the following versions: QTS 5.0.1: Photo Station 6.1.2 and later QTS 5.0.0/4.5.x: Photo Station 6.0.22 and later QTS 4.3.6: Photo Station 5.7.18 and later QTS 4.3.3: Photo Station 5.4.15 and later QTS 4.2.6: Photo Station 5.2.14 and later

Breakdown
79.3 / 100
Exploited
Yes, in CISA KEV
Reports
0
Tactics
2/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

  2. What they do

First seen exploited 4 months before it was disclosed.

  1. First seen exploitedVulnCheck KEV evidence4 mo before
  2. DisclosedAdded to CISA KEVknown ransomware use; EU database agreesday 0

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

2 , grouped by in kill-chain order, 2 cited passages 2

Initial AccessTA0001

Exploit Public-Facing Application T1190 Medium
AI mapping from the description · how it is exploited

Network-exploitable flaw in exposed Photo Station service

could allow an attacker to modify system files
From the official description (NVD) Original (opens in a new tab) ↗

ImpactTA0040

Stored Data Manipulation T1565.001 Medium
AI mapping from the description · primary impact

Attacker modifies stored system files directly

could allow an attacker to modify system files
From the official description (NVD) Original (opens in a new tab) ↗

Detection

0 rules for this CVE · 155 general rules for its techniques

Rules for this CVE

0 that reference CVE-2022-27593 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

What security researchers reported

Not named in any threat report yet

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

2 links, grouped by NVD tag (1 duplicate merged)
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