CVE-2022-40319
Published: 17 January 2023
Summary
CVE-2022-40319 is a high-severity Authorization Bypass Through User-Controlled Key (CWE-639) vulnerability in Lsoft Listserv. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 3.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
The vulnerability is an insecure direct object reference (CWE-639) in the LISTSERV 17 web interface. Remote attackers can supply a modified email address parameter in a wa.exe URL to access or alter account settings belonging to other users. The flaw carries a CVSS 3.1 score of 7.5 and affects the publicly reachable web component of LISTSERV 17.
Unauthenticated attackers on the network can exploit the issue to perform unauthorized modifications to any victim's LISTSERV account without requiring credentials or user interaction. Successful exploitation grants the ability to change account details that should be restricted to the legitimate owner.
Public references consist primarily of exploit code posted to Packet Storm in January 2023; no vendor advisory or patch information is included among the supplied sources. The associated EPSS score has remained near 0.32 with only minor fluctuation between its current and peak values.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-43610
Vulnerability details
The LISTSERV 17 web interface allows remote attackers to conduct Insecure Direct Object References (IDOR) attacks via a modified email address in a wa.exe URL. The impact is unauthorized modification of a victim's LISTSERV account.
- 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.