Use of a broken or risky cryptographic algorithm in python-rsa - CVE-2020-13757
Published: June 8, 2020 / Updated: March 7, 2023
Vulnerability identifier: #VU28793
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-13757
CWE-ID: CWE-327
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: sybrenstuvel
Affected software:
python-rsa
python-rsa
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to sensitive information on the target system.
The vulnerability exists due to the affected software does not detect ciphertext modification during decryption (prepended "0" bytes) in PKCS1_v1_5. A remote attacker gain access to sensitive information on the system.
How to mitigate CVE-2020-13757
Install updates from vendor's website.