CVE-2023-40362
Published: 12 January 2024
Summary
CVE-2023-40362 is a medium-severity Missing Authorization (CWE-862) vulnerability in Centralsquare Click2Gov Building Permit. Its CVSS base score is 4.3 (Medium).
Operationally, ranked in the top 7.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CentralSquare Click2Gov Building Permit versions prior to October 2023 are affected by a missing access-control vulnerability tracked as CWE-862. The flaw resides in the application's handling of contractor records associated with user accounts and carries a CVSS 3.1 base score of 4.3.
An attacker who already possesses valid low-privileged credentials and knows both a target user identifier and the corresponding contractor information can issue remote requests that delete those contractors from the account. The attack requires no user interaction and affects only integrity.
Public references consist of a GitHub repository that reproduces the issue and links to a class-action filing concerning an earlier Click2Gov data incident; neither the references nor the CVE entry supply explicit vendor patch guidance or mitigation steps beyond the implication that the problem was addressed after October 2023.
The associated EPSS score has remained flat at 0.0854 with no material rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-44933
Vulnerability details
An issue was discovered in CentralSquare Click2Gov Building Permit before October 2023. Lack of access control protections allows remote attackers to arbitrarily delete the contractors from any user's account when the user ID and contractor information is known.
- 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.
Requiring an access control policy ensures authorization checks are defined and applied for critical functions.
Reviews of access controls detect missing authorization checks on critical functions or resources.
Documenting permitted unauthenticated actions prevents missing authorization by making all exceptions explicit and subject to organizational review.
Requiring attribute association with information prevents authorization from being performed without necessary security or privacy context.
Mandating authorization prior to allowing remote connections addresses missing authorization for remote access.
Mandating authorization before wireless connections are allowed prevents missing authorization for wireless access.
The control requires authorization before allowing mobile device connections, directly mitigating missing authorization for system access.
Requiring approvals for account creation and specifying authorizations ensures authorization is not missing for system access.