SSRF in adminer
CVE-2021-21311
Key Information:
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What is CVE-2021-21311?
Adminer, a lightweight open-source database management tool, is susceptible to a server-side request forgery (SSRF) vulnerability in versions prior to 4.7.9. This vulnerability affects users who are utilizing Adminer versions that bundle all drivers, such as 'adminer.php', enabling an attacker to potentially exploit internal resources or external services through crafted requests. It is crucial for users to upgrade to version 4.7.9 or later to mitigate this risk.
CISA has reported CVE-2021-21311
CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2021-21311 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace
The CISA's recommendation is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected Version(s)
adminer >= 4.0.0, < 4.7.9
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
EPSS Score
90% chance of being exploited in the next 30 days.
CVSS V3.1
Timeline
- 🦅
CISA Reported
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved