CVE-2024-25734
Published: 27 March 2024
Summary
CVE-2024-25734 is a high-severity Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) vulnerability in Wyrestorm Apollo Vx20 Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 8.9% 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-2024-25734 affects WyreStorm Apollo VX20 devices running firmware versions prior to 1.3.58. The TELNET service exhibits a username enumeration weakness because it only prompts for a password after receiving a valid username, allowing remote observers to distinguish valid accounts from invalid ones through timing or response differences. The flaw is tracked under CWE-200 and carries a CVSS 3.1 score of 7.5 reflecting network-accessible information disclosure without authentication.
An unauthenticated remote attacker can connect to the TELNET port and systematically test candidate usernames to enumerate valid accounts. Successful enumeration narrows the target space for subsequent password-guessing or brute-force attempts against the same service, increasing the likelihood of obtaining administrative access to the device.
The references point to public disclosures on Packet Storm and Seclists along with researcher write-ups, but contain no additional vendor advisory text or explicit mitigation steps beyond the version information already noted in the CVE description. The associated EPSS score has remained flat at 0.0630 with no material increase since publication.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-23044
Vulnerability details
An issue was discovered on WyreStorm Apollo VX20 devices before 1.3.58. The TELNET service prompts for a password only after a valid username is entered, which might make it easier for remote attackers to enumerate user accounts.
- 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.
Automated marking applies security attributes to system outputs, making it harder for attackers to exploit unmarked sensitive information leading to unauthorized exposure.
Proper attribute retention and permitted-value enforcement limits unauthorized actors from accessing sensitive information lacking correct labels.
Prevents unauthorized exposure of sensitive information by prohibiting untrusted external systems from processing or storing it.
By enforcing authorization matching prior to sharing, the control reduces the risk of exposing sensitive information to unauthorized actors.
Review and removal of nonpublic information from publicly accessible systems directly prevents exposure of sensitive data to unauthorized actors.
Data mining protection mechanisms detect and block unauthorized bulk extraction of sensitive data, directly mitigating exposure to unauthorized actors.
Literacy training teaches users to recognize and avoid actions that result in unauthorized exposure of sensitive information.
Retaining and monitoring training records confirms personnel have completed privacy and security awareness training on handling sensitive data, reducing the chance of unauthorized exposure due to lack of knowledge.