CWE-327

A padding oracle vulnerability exists in the AWS S3 Crypto SDK for GoLang versions prior to V2. The SDK allows users to encrypt files with AES-CBC without computing a Message Authentication Code (MAC), which then allows an attacker who has write access to the target’s S3 bucket and can observe whether or not an endpoint with access to the key can decrypt a file, they can reconstruct the plaintext with (on average) 128*length (plaintext) queries to the endpoint, by exploiting CBC’s ability to manipulate the bytes of the next block and PKCS5 padding errors. It is recommended to update your SDK to V2 or later, and re-encrypt your files.

A vulnerability in the in-band key negotiation exists in the AWS S3 Crypto SDK for GoLang versions prior to V2. An attacker with write access to the targeted bucket can change the encryption algorithm of an object in the bucket, which can then allow them to change AES-GCM to AES-CTR. Using this in combination with a decryption oracle can reveal the authentication key used by AES-GCM as decrypting the GMAC tag leaves the authentication key recoverable as an algebraic equation. It is recommended to update your SDK to V2 or later, and re-encrypt your files.

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A CWE-327: Use of a Broken or Risky Cryptographic Algorithm vulnerability exists in Easergy T300 (Firmware version 1.5.2 and older) which could allow an attacker to acquire a password by brute force.

A CWE-327: Use of a Broken or Risky Cryptographic Algorithm vulnerability exists in Easergy Builder (Version 1.4.7.2 and older) which could allow an attacker access to the authorization credentials for a device and gain full access.

Use of a Broken or Risky Cryptographic Algorithm vulnerability in McAfee Database Security Server and Sensor prior to 4.8.0 in the form of a SHA1 signed certificate that would allow an attacker on the same local network to potentially intercept communication between the Server and Sensors.