CVE-2021-31249 is a CRLF injection vulnerability affecting CHIYU Technology Inc.'s BF-430, BF-431, and BF-450M TCP/IP Converter devices due to insufficient validation of the 'redirect=' parameter in various CGI components. This medium-severity vulnerability (CVSS 6.5) allows unauthenticated attackers to achieve low impact on confidentiality and integrity with low attack complexity, potentially leading to HTTP response splitting or other injection attacks. While there is no evidence of active exploitation or public exploit code like Metasploit or ExploitDB entries, Nuclei templates exist for detection, and the vulnerability has received minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:chiyu-tech:bf-430_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:chiyu-tech:bf-431_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:chiyu-tech:bf-450m_firmware:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.