Function Pointer Hijacking in Cesanta MJS v2.20.0
CVE-2023-43338

9.8CRITICAL

Key Information:

Vendor

Cesanta

Status
Mjs
Vendor
CVE Published:
23 September 2023

What is CVE-2023-43338?

The MJS v2.20.0 of Cesanta is susceptible to a function pointer hijacking vulnerability that can be exploited through the mjs_get_ptr() function. This security flaw allows attackers to inject crafted input, resulting in the execution of arbitrary code. Proper validation and sanitization of external inputs are critical to mitigate the risk associated with this vulnerability.

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References

https://github.com/cesanta/mjs/issues/250

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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