CVE-2022-21668 Information

Description

pipenv is a Python development workflow tool. Starting with version 2018.10.9 and prior to version 2022.1.8 a flaw in pipenv’s parsing of requirements files allows an attacker to insert a specially crafted string inside a comment anywhere within a requirements.txt file which will cause victims who use pipenv to install the requirements file to download dependencies from a package index server controlled by the attacker. By embedding malicious code in packages served from their malicious index server the attacker can trigger arbitrary remote code execution (RCE) on the victims’ systems. If an attacker is able to hide a malicious --index-url option in a requirements file that a victim installs with pipenv the attacker can embed arbitrary malicious code in packages served from their malicious index server that will be executed on the victim’s host during installation (remote code execution/RCE). When pip installs from a source distribution any code in the setup.py is executed by the install process. This issue is patched in version 2022.1.8. The GitHub Security Advisory contains more information about this vulnerability.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Reference

https://github.com/pypa/pipenv/releases/tag/v2022.1.8 https://github.com/pypa/pipenv/security/advisories/GHSA-qc9x-gjcv-465w https://github.com/pypa/pipenv/commit/439782a8ae36c4762c88e43d5f0d8e563371b46f https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KCROBYHUS6DKQPCXBRPCZ5CDBNQTYAWT/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QHQRIWKDP3SVJABAPEXBIQPKDI6UP7G4/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/56HBA3EOSLEDNCCBJVHE6DO34P56EOUM/ pipenv is a Python development workflow tool. Starting with version 2018.10.9 and prior to version 2022.1.8 a flaw in pipenv’s parsing of requirements files allows an attacker to insert a specially crafted string inside a comment anywhere within a requirements.txt file which will cause victims who use pipenv to install the requirements file to download dependencies from a package index server controlled by the attacker. By embedding malicious code in packages served from their malicious index server the attacker can trigger arbitrary remote code execution (RCE) on the victims' systems. If an attacker is able to hide a malicious --index-url option in a requirements file that a victim installs with pipenv the attacker can embed arbitrary malicious code in packages served from their malicious index server that will be executed on the victim’s host during installation (remote code execution/RCE). When pip installs from a source distribution any code in the setup.py is executed by the install process. This issue is patched in version 2022.1.8. The GitHub Security Advisory contains more information about this vulnerability.

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.6