CVE-2020-5722 on CISA KEV

The HTTP interface of the Grandstream UCM6200 series is vulnerable to an unauthenticated remote SQL injection via crafted HTTP request. An attacker can use this vulnerability to execute shell commands as root on versions before 1.0.19.20 or inject HTML in password recovery emails

01What CISA says about this vulnerability

The HTTP interface of the Grandstream UCM6200 series is vulnerable to an unauthenticated remote SQL injection via crafted HTTP request. An attacker can use this vulnerability to execute shell commands as root on versions before 1.0.19.20 or inject HTML in password recovery emails in versions before 1.0.20.17.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• www.tenable.com — https://www.tenable.com/security/research/tra-2020-15
• packetstormsecurity.com — http://packetstormsecurity.com/files/156876/UCM6202-1.0.18.13-Remote-Command-Inj…
• packetstormsecurity.com — http://packetstormsecurity.com/files/165708/Grandstream-UCM62xx-IP-PBX-sendPassw…

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
n	a / Grandstream UCM6200 Series	Before 1.0.20.17

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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