CVE-2022-38840
Published: 16 April 2023
Summary
CVE-2022-38840 is a high-severity Improper Restriction of XML External Entity Reference (CWE-611) vulnerability in Guralp Man-Eam-0003. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 1.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2022-38840 is an XML External Entity vulnerability (CWE-611) affecting the cgi-bin/xmlstatus.cgi component in Güralp MAN-EAM-0003 version 3.2.4. The flaw is triggered by an uploaded XML file and permits disclosure of local files on the affected device. It received a CVSS 3.1 base score of 7.5 reflecting network attack vector, low complexity, and no required authentication or user interaction.
An unauthenticated remote attacker can send a crafted XML document to the CGI endpoint and retrieve arbitrary files readable by the web-server process. Successful exploitation yields sensitive configuration data or other local content without needing prior credentials or user assistance.
Public references consist of PacketStorm entries and an associated Google Drive folder that contain proof-of-concept material for the XML injection issue; no vendor advisory or patch information is included in the listed sources. The EPSS score reached a peak of 0.8328 after the 2023 disclosure before receding to its current value of 0.6009.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-41399
Vulnerability details
cgi-bin/xmlstatus.cgi in Güralp MAN-EAM-0003 3.2.4 is vulnerable to an XML External Entity (XXE) issue via XML file upload, which leads to local file disclosure.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.