CVE-2022-1631
Published: 09 May 2022
Summary
CVE-2022-1631 is a high-severity Improper Access Control (CWE-284) vulnerability in Microweber Microweber. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 5.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
Microweber CMS versions prior to 1.2.15 contain an account pre-takeover and takeover flaw tracked as CVE-2022-1631. The root cause is the absence of email confirmation on registration combined with missing validation of email addresses supplied via social login flows and the lack of checks for existing accounts. The issue is assigned CWE-284 and CWE-863 and carries a CVSS 3.1 base score of 8.8.
An unauthenticated attacker can register an account using any victim email address, including corporate addresses from G-Suite environments. Because the application treats the registration as legitimate, the attacker obtains pre-authenticated access to the victim’s account, can observe all subsequent activity, and can attempt to alter or delete data, affecting confidentiality, integrity, and availability.
Public references point to a fix merged in commit c162dfffb9bfd264d232aaaf5bb3daee16a3cb38 that enforces proper email uniqueness and confirmation checks; administrators are advised to upgrade to 1.2.15 or later. A proof-of-concept exploit demonstrating the takeover has been published on Packet Storm, and the issue was originally reported through a huntr.dev bounty. The associated EPSS score has remained flat at 0.1515 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-2903
Vulnerability details
Users Account Pre-Takeover or Users Account Takeover. in GitHub repository microweber/microweber prior to 1.2.15. Victim Account Take Over. Since, there is no email confirmation, an attacker can easily create an account in the application using the Victim’s Email. This allows…
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an attacker to gain pre-authentication to the victim’s account. Further, due to the lack of proper validation of email coming from Social Login and failing to check if an account already exists, the victim will not identify if an account is already existing. Hence, the attacker’s persistence will remain. An attacker would be able to see all the activities performed by the victim user impacting the confidentiality and attempt to modify/corrupt the data impacting the integrity and availability factor. This attack becomes more interesting when an attacker can register an account from an employee’s email address. Assuming the organization uses G-Suite, it is much more impactful to hijack into an employee’s 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.
The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.
Supervision and review of access control activities directly detects and remediates improper access configurations or usages.
Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.
Requiring prior authorization for each remote access type prevents improper access control over remote connections.
Requiring authorization of wireless access before allowing connections enforces proper access control for this access method.
Requiring authorization and configuration controls for mobile device connections directly enforces access control and prevents unauthorized devices from reaching organizational systems.
Defining account types, requiring approvals for creation, specifying authorizations, monitoring usage, and reviewing accounts directly prevents improper access control by ensuring only authorized accounts exist and are used.
Enforces rules governing access to the system and its data from external systems based on established trust relationships.