PT-2023-30686 · Unknown · Pypinksign

CVE-2023-48056 · Published 2023-11-16 · Updated 2026-07-09

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions PyPinkSign version 0.5.1

Description The issue concerns the use of a non-random or static Initialization Vector (IV) in Cipher Block Chaining (CBC) mode for Advanced Encryption Standard (AES) encryption. This can potentially lead to the disclosure of information and communications.

Recommendations For PyPinkSign version 0.5.1, consider updating to a version that uses a random IV for AES encryption in CBC mode to prevent information disclosure. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use of Insufficiently Random Values

Weakness Enumeration

CWE-330

Related Identifiers

CVE-2023-48056

GHSA-FXFF-WXXV-C2JC

PYSEC-2023-245

Affected Products

Pypinksign

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/48xxx/CVE-2023-48056.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-48056 · Security Note
• https://osv.dev/vulnerability/GHSA-fxff-wxxv-c2jc · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-48056 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2023-245 · Vendor Advisory
• https://github.com/pypa/advisory-database/tree/main/vulns/pypinksign/PYSEC-2023-245.yaml · Note
• https://github.com/bandoche/PyPinkSign/commit/e1809ddf6a266e9007e10f0486b462fa7f89a43d · Note
• https://github.com/bandoche/PyPinkSign · Note
• https://github.com/bandoche/PyPinkSign/blob/main/pypinksign/pypinksign.py#L504 · Note
• https://github.com/bandoche/PyPinkSign/blob/main/pypinksign/pypinksign.py#L537 · Note
• https://github.com/bandoche/PyPinkSign/issues/29 · Note
• http://pypinksign.com · Note
• https://gxx777.github.io/PyPinkSign_v0.5.1_Cryptographic_API_Misuse_Vulnerability.md · Note
• https://t.me/cveNotify/192958 · Telegram Post
• https://github.com/advisories/GHSA-fxff-wxxv-c2jc · Note