Vulnerability Details : CVE-2023-35721
NETGEAR Multiple Routers curl_post Improper Certificate Validation Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of multiple NETGEAR routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the update functionality, which operates over HTTPS. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-19981.
Vulnerability category: Execute code
Products affected by CVE-2023-35721
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Exploit prediction scoring system (EPSS) score for CVE-2023-35721
5.57%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 90 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-35721
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.1
|
HIGH | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
Zero Day Initiative | 2024-05-03 |
CWE ids for CVE-2023-35721
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The product does not validate, or incorrectly validates, a certificate.Assigned by: zdi-disclosures@trendmicro.com (Secondary)
References for CVE-2023-35721
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https://kb.netgear.com/000065668/Security-Advisory-for-Improper-Remote-Server-Certificate-Validation-on-the-RAX50-PSV-2023-0019
Security Advisory for Improper Remote Server Certificate Validation on the RAX50, PSV-2023-0019 - NETGEAR Support
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https://www.zerodayinitiative.com/advisories/ZDI-23-893/
ZDI-23-893 | Zero Day Initiative
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