CVE-2020-8897
4.8 · MEDIUMOverview
CVE-2020-8897 is a medium-severity vulnerability affecting amazon aws_encryption_sdk. It was published on November 16, 2020 and has a CVSS 3.1 base score of 4.8 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
A weak robustness vulnerability exists in the AWS Encryption SDKs for Java, Python, C and Javalcript prior to versions 2.0.0. Due to the non-committing property of AES-GCM (and other AEAD ciphers such as AES-GCM-SIV or (X)ChaCha20Poly1305) used by the SDKs to encrypt messages, an attacker can craft a unique cyphertext which will decrypt to multiple different results, and becomes especially relevant in a multi-recipient setting. We recommend users update their SDK to 2.0.0 or later.
Remediation
Check the references section for vendor advisories and patches from amazon. Update aws_encryption_sdk to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| amazon | aws_encryption_sdk | >= 0, < 2.0.0 | Affected |
References
Frequently Asked Questions
What is CVE-2020-8897?
CVE-2020-8897 is a medium-severity vulnerability affecting amazon aws_encryption_sdk. It was published on November 16, 2020 and has a CVSS 3.1 base score of 4.8 (MEDIUM).
How severe is CVE-2020-8897?
This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-8897?
Check the references section for vendor advisories and patches from amazon. Update aws_encryption_sdk to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-8897?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-8897 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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