CWE-350: Reliance on Reverse DNS Resolution for a Security-Critical Action
low-riskThe product performs reverse DNS resolution on an IP address to obtain the hostname and make a security decision, but it does not properly ensure that the IP address is truly associated with the hostname.
Abstraction: Variant
Common Consequences
Access Control
→
Gain Privileges or Assume Identity
Detection Methods
Automated Static Analysis
Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)
Real-World Examples (10)
| CVE | CVSS | EPSS | KEV |
|---|---|---|---|
| CVE-2017-0902 | 8.1 | 5.2% | — |
| CVE-2018-7160 | 8.8 | 1.5% | — |
| CVE-2023-32020 | 5.6 | 1.2% | — |
| CVE-2021-34561 | 7.5 | 0.3% | — |
| CVE-2021-22884 | 7.5 | 0.3% | — |
| CVE-2020-11091 | 5.8 | 0.2% | — |
| CVE-2024-42364 | 6.5 | 0.1% | — |
| CVE-2025-24010 | 6.5 | 0.1% | — |
| CVE-2023-52235 | 8.8 | 0.1% | — |
| CVE-2025-8036 | 8.1 | 0.1% | — |
0
/ 100
low-risk
Active Threat
0/50 · Minimal
Exploit Availability
0/50 · Minimal