CVE-2023-34363

Severity: medium (CVSS 5.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-09 · updated 2026-06-17
Weakness: CWE-338

Description

An issue was discovered in Progress DataDirect Connect for ODBC before 08.02.2770 for Oracle. When using Oracle Advanced Security (OAS) encryption, if an error is encountered initializing the encryption object used to encrypt data, the code falls back to a different encryption mechanism that uses an insecure random number generator to generate the private key. It is possible for a well-placed attacker to predict the output of this random number generator, which could lead to an attacker decrypting traffic between the driver and the database server. The vulnerability does not exist if SSL / TLS encryption is used.

Affected products

Progress Datadirect Odbc Oracle Wire Protocol Driver: before 08.02.2770 — fixed in 08.02.2770

How to fix

Upgrade to a fixed version: Progress Datadirect Odbc Oracle Wire Protocol Driver 08.02.2770. Check the vendor advisory for mitigations.

References

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