CVE-2023-48056: Pypinksign PyPinkSign Uses A Non-random Or Vulnerability

HIGH
Advisory Identifier: GHSA-fxff-wxxv-c2jc
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CVSS 7.5
CWE-330
Published
Advisory Summary

CVE-2023-48056 is a HIGH (CVSS 7.5) pypinksign uses a non-random or vulnerability (CWE-330: Use of Insufficiently Random Values) affecting Pypinksign libraries in the PyPI ecosystem. The issue involves pypinksign uses a non-random or static iv for cipher block chaining (cbc) mode in aes encryption. Remediation is available in the latest vendor maintenance releases.

CVE-2023-48056 at a Glance

CVE Identifier CVE-2023-48056
GHSA Identifier GHSA-fxff-wxxv-c2jc
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-330: Use of Insufficiently Random Values
Affected Product Pypinksign
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2023-48056

To remediate this vulnerability, upgrade all affected Pypinksign dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

pypinksign fixed: Latest secure release 
pip install pypinksign>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show pypinksign

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2023-48056, inspect your installed packages using pip:

pip show pypinksign

Analyze the terminal output to locate any version of Pypinksign in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show pypinksign command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-330: Use of Insufficiently Random Values, where the product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers. In Pypinksign, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

PyPinkSign v0.5.1 uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption. This vulnerability can lead to the disclosure of information and communications.

CVE-2023-48056 Affected Pypinksign Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
pypinksign
pypi/pypinksign
PyPI
≤ 0.5.1

References

NVD — CVE-2023-48056 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-48056
Pypinksign Source Repository REPOSITORY
https://github.com/bandoche/PyPinkSign/issues/29
Security Fix Commit FIX COMMIT
https://github.com/bandoche/PyPinkSign/commit/e1809ddf6a266e9007e10f0486b462fa7f89a43d
Pypinksign Source Repository REPOSITORY
https://github.com/bandoche/PyPinkSign
Pypinksign Source Repository REPOSITORY
https://github.com/bandoche/PyPinkSign/blob/main/pypinksign/pypinksign.py#L504
Pypinksign Source Repository REPOSITORY
https://github.com/bandoche/PyPinkSign/blob/main/pypinksign/pypinksign.py#L537
Pypinksign Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/pypinksign/PYSEC-2023-245.yaml
gxx777.github.io/pypinksign_v0.5.1_c... WEB
https://gxx777.github.io/PyPinkSign_v0.5.1_Cryptographic_API_Misuse_Vulnerability.md

Frequently Asked Questions

What is CVE-2023-48056?
CVE-2023-48056 is a security vulnerability in Pypinksign involving PyPinkSign uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption under CWE-330: Use of Insufficiently Random Values.
Which Pypinksign versions are affected?
Affected versions include releases prior to current release patches across affected packages: pypinksign.
What version fixes CVE-2023-48056?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is pypinksign affected?
Yes, pypinksign is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2023-48056?
CVE-2023-48056 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2023-48056?
CVE-2023-48056 is classified under CWE-330: Use of Insufficiently Random Values (The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.).
How can I check PyPI dependencies for CVE-2023-48056?
Run the dependency tree command: 'pip show pypinksign'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-fxff-wxxv-c2jc",
  "modified" : "2024-10-14T17:04:19Z",
  "published" : "2023-11-16T18:30:31Z",
  "aliases" : [ "CVE-2023-48056" ],
  "summary" : "PyPinkSign uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption",
  "details" : "PyPinkSign v0.5.1 uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption. This vulnerability can lead to the disclosure of information and communications.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "pypinksign"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.5.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-48056"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bandoche/PyPinkSign/issues/29"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bandoche/PyPinkSign/commit/e1809ddf6a266e9007e10f0486b462fa7f89a43d"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/bandoche/PyPinkSign"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bandoche/PyPinkSign/blob/main/pypinksign/pypinksign.py#L504"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bandoche/PyPinkSign/blob/main/pypinksign/pypinksign.py#L537"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/pypinksign/PYSEC-2023-245.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://gxx777.github.io/PyPinkSign_v0.5.1_Cryptographic_API_Misuse_Vulnerability.md"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-330" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-11-17T21:42:37Z",
    "nvd_published_at" : "2023-11-16T18:15:07Z"
  }
}