CVE-2025-34119
Published: 16 July 2025
Summary
CVE-2025-34119 is a high-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Githubusercontent (inferred from references). Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 2.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
A remote file disclosure vulnerability affects EasyCafe Server version 2.2.14. The server component listening on TCP port 831 implements a custom protocol that accepts unauthenticated requests containing opcode 0x43, allowing an attacker to specify an absolute file path and retrieve the file contents if it exists and is readable by the server process. The flaw is associated with missing authentication requirements (CWE-306) and exposure of resources to the wrong sphere (CWE-668), resulting in a CVSS 4.0 score of 8.8.
Unauthenticated remote attackers can exploit the issue over the network without user interaction or credentials. By sending a crafted opcode 0x43 request, an attacker can read arbitrary files on the server, including system configuration files, password stores, and application data, thereby achieving high-impact confidentiality loss with limited integrity effects.
Public exploit code is available, including a Metasploit auxiliary scanner module and an Exploit-DB entry, and the current EPSS score of 0.4530 matches its recorded peak, indicating sustained exploitation interest since disclosure. No vendor patch or mitigation guidance is referenced in the available advisories.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-21751
Vulnerability details
A remote file disclosure vulnerability exists in EasyCafe Server 2.2.14, exploitable by unauthenticated remote attackers via TCP port 831. The server listens for a custom protocol where opcode 0x43 can be used to request arbitrary files by absolute path. If…
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the file exists and is accessible, its content is returned without authentication. This flaw allows attackers to retrieve sensitive files such as system configuration, password files, or application data.
- 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.
Knowing every system allows confirmation that critical functions are not left without required authentication mechanisms.
Requires authentication gates on critical functions that must remain unavailable to anonymous public users.
Public components are isolated in separate subnetworks and critical internal functions are reachable only via controlled interfaces.
Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.
Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.
Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.
Controls whether organization resources are exposed to external system spheres by permitting or prohibiting their use.
The control ensures information is not released into a security sphere where the recipient lacks matching access authorizations.