InfoSecBulletin Cybersecurity for mankind
GreyNoise warns of a coordinated increase in the exploitation of Server-Side Request Forgery (SSRF) vulnerabilities across various platforms.
“At least 400 IPs have been seen actively exploiting multiple SSRF CVEs simultaneously, with notable overlap between attack attempts,” the company said, adding it observed the activity on March 9, 2025.
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Countries targeted by SSRF exploitation attempts include the United States, Germany, Singapore, India, Lithuania, Japan, and notably Israel, which experienced a surge on March 11, 2025.
The list of SSRF vulnerabilities being exploited are listed below:
CVE-2017-0929 (CVSS score: 7.5) – DotNetNuke
CVE-2020-7796 (CVSS score: 9.8) – Zimbra Collaboration Suite
CVE-2021-21973 (CVSS score: 5.3) – VMware vCenter
CVE-2021-22054 (CVSS score: 7.5) – VMware Workspace ONE UEM
CVE-2021-22175 (CVSS score: 9.8) – GitLab CE/EE
CVE-2021-22214 (CVSS score: 8.6) – GitLab CE/EE
CVE-2021-39935 (CVSS score: 7.5) – GitLab CE/EE
CVE-2023-5830 (CVSS score: 9.8) – ColumbiaSoft DocumentLocator
CVE-2024-6587 (CVSS score: 7.5) – BerriAI LiteLLM
CVE-2024-21893 (CVSS score: 8.2) – Ivanti Connect Secure
OpenBMCS 2.4 Authenticated SSRF Attempt (No CVE)
Zimbra Collaboration Suite SSRF Attempt (No CVE)
Many of the same IP addresses are targeting multiple SSRF vulnerabilities simultaneously, indicating organized exploitation or automated attacks.
Users should apply the latest patches, restrict outbound connections to only what’s necessary, and watch for any suspicious outbound requests due to ongoing exploitation attempts.
“Many modern cloud services rely on internal metadata APIs, which SSRF can access if exploited,” GreyNoise said. “SSRF can be used to map internal networks, locate vulnerable services, and steal cloud credentials.”
