High severity · published May 3, 2024
CVE-2023-27361
NETGEAR RAX30 rex_cgi JSON Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
8.0
CVSS
0.9%
EPSS
No
On KEV
Description
NETGEAR RAX30 rex_cgi JSON Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR RAX30 routers. Authentication is required to exploit this vulnerability.
The specific flaw exists within the handling of JSON data. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19355.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RF
Rax30 Firmware · Netgear
before 1.0.9.92 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-27361
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-27361
Vendor Advisory
https://kb.netgear.com/000065625/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-the-RAX30-PSV-2022-0302
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-495/
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