CVE-2023-52030
Published: 11 January 2024
Summary
CVE-2023-52030 is a critical-severity Execution with Unnecessary Privileges (CWE-250) vulnerability in Totolink A3700R Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 5.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
TOTOlink A3700R firmware version v9.1.2u.5822_B20200513 contains a remote command execution vulnerability in the setOpModeCfg function. The flaw is tracked as CVE-2023-52030 with a CVSS 3.1 score of 9.8, reflecting network attack vector, low attack complexity, and no required privileges or user interaction.
An unauthenticated attacker with network access can invoke the affected function to execute arbitrary operating-system commands on the device. Successful exploitation grants full control over the router, enabling actions such as configuration changes, traffic interception, or use of the device as an internal network foothold.
Public references consist of a technical write-up that demonstrates the vulnerability through the setOpModeCfg endpoint; no vendor advisory or firmware patch information is included in the available sources. The EPSS score stands at 0.1482 with no material increase from its recorded peak.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-56709
Vulnerability details
TOTOlink A3700R v9.1.2u.5822_B20200513 was discovered to contain a remote command execution (RCE) vulnerability via the setOpModeCfg function.
- 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.
Policy promotes least privilege by defining necessary privileges and management commitment to them.
Supervision detects and allows removal of unnecessary privileges that enable execution with excess rights.
Reviewing accounts for compliance, disabling/removing unneeded accounts, and aligning with termination processes prevents execution with unnecessary privileges.
Separation of duties prevents any single user from holding all privileges needed to complete a critical task, directly reducing execution with unnecessary privileges.
Directly prevents execution with more privileges than needed for assigned tasks.
Role-based training on least privilege principles reduces the chance personnel assign or retain unnecessary privileges.
Analysis of audit records can identify execution with unnecessary privileges through unusual activity patterns.
Automatic termination after a defined period eliminates unnecessary privileges from persistent connections.