CVEs / CVE-2021-36380
CVE-2021-36380: Sunhillo SureLine OS Command Injection Vulnerablity
- Known exploited in the CISA KEV catalog since 5 Mar 2024
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 97.8% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Sunhillo SureLine contains an OS command injection vulnerability that allows an attacker to cause a denial-of-service or utilize the device for persistence on the network via shell metacharacters in ipAddr or dnsAddr in /cgi/networkDiag.cgi.
Description
Sunhillo SureLine before 8.7.0.1.1 allows Unauthenticated OS Command Injection via shell metacharacters in ipAddr or dnsAddr /cgi/networkDiag.cgi.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
| sunhillo sureline | before 8.7.0.1.1 | 8.7.0.1.1 |
Exploitation
| In CISA KEV since | 5 Mar 2024 |
|---|---|
| Due date for US federal agencies | 26 Mar 2024 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-78 |
References
- CVE-2021-36380 on NVD
- CVE-2021-36380 in the CISA KEV catalog
- https://www.sunhillo.com/fb011/ (cited by CISA)
- https://research.nccgroup.com/2021/07/26/technical-advisory-sunhillo-sureline-unauthenticated-os-command-injection-cve-2021-36380/ Exploit, Third Party Advisory
- https://www.sunhillo.com/product/sureline/ Product
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36380 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.