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CVE-2019-6802: CRLF Injection in pypiserver

January 30, 2019 (updated October 15, 2024)

CRLF Injection in pypiserver 1.2.5 and below allows attackers to set arbitrary HTTP headers and possibly conduct XSS attacks via a %0d%0a in a URI.

References

  • github.com/advisories/GHSA-mh24-7wvg-v88g
  • github.com/pypa/advisory-database/tree/main/vulns/pypiserver/PYSEC-2019-113.yaml
  • github.com/pypiserver/pypiserver
  • github.com/pypiserver/pypiserver/commit/1375a67c55a9b8d4619df30d2a1c0b239d7357e6
  • github.com/pypiserver/pypiserver/issues/237
  • nvd.nist.gov/vuln/detail/CVE-2019-6802

Code Behaviors & Features

Detect and mitigate CVE-2019-6802 with GitLab Dependency Scanning

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Affected versions

All versions before 1.2.6

Fixed versions

  • 1.2.6

Solution

Upgrade to version 1.2.6 or above.

Impact 6.1 MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Learn more about CVSS

Weakness

  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

pypi/pypiserver/CVE-2019-6802.yml

Spotted a mistake? Edit the file on GitLab.

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