CVE-2022-32429
Published: 10 August 2022
Summary
CVE-2022-32429 is a critical-severity Improper Authentication (CWE-287) vulnerability in Megatech Msnswitch Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 0.9% 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-2022-32429 is an authentication-bypass vulnerability in the ExportSettings.sh script located at /cgi-bin-sdb/ExportSettings.sh within the firmware of Mega System Technologies Inc MSNSwitch MNT.2408 devices. The flaw is tracked under CWE-287 and enables unauthenticated manipulation of application settings, which in turn leads to remote code execution. It received a CVSS 3.1 score of 9.8 reflecting network-accessible attack vectors with no required credentials or user interaction.
An unauthenticated attacker with network reachability to the device can directly invoke the affected endpoint to alter configuration values and obtain arbitrary command execution on the switch. No prior authentication or special privileges are needed, allowing the attacker to fully compromise confidentiality, integrity, and availability of the target.
Public proof-of-concept exploit code and technical write-ups have been published on Packet Storm Security and independent researcher sites. The EPSS score is currently 0.7990 with a peak of 0.8699, indicating ongoing exploitation interest after disclosure. No vendor advisory or patch information appears among the referenced sources.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-35502
Vulnerability details
An authentication-bypass issue in the component http://MYDEVICEIP/cgi-bin-sdb/ExportSettings.sh of Mega System Technologies Inc MSNSwitch MNT.2408 allows unauthenticated attackers to arbitrarily configure settings within the application, leading to remote code execution.
- 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.
Detects unauthorized successful logons resulting from improper authentication implementations.
Documented procedures ensure personnel are trained on authentication mechanisms, tangibly lowering the risk of improper authentication being exploited.
Security awareness training instructs users on secure authentication practices and avoiding credential compromise.
Training on authentication mechanisms and best practices decreases the occurrence of improper authentication.
Non-repudiation requires strong authentication mechanisms to irrefutably attribute performed actions to specific individuals or processes.
Session content review can reveal authentication bypasses or failures in session establishment.
Review of authentication-related audit records can detect improper authentication mechanisms or bypasses.
Assessments check authentication mechanisms for correct implementation and effectiveness, reducing successful authentication bypass attempts.