pip Package up to 19.1 on Python _internal/download.py _download_http_url Content-Disposition Header path traversal

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in pip Package up to 19.1 on Python. This vulnerability affects the function _download_http_url of the file _internal/download.py. The manipulation with the input ../ as part of Content-Disposition Header leads to path traversal. This vulnerability is uniquely identified as CVE-2019-20916. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in pip Package up to 19.1 on Python. It has been rated as critical. This issue affects the function _download_http_url of the file _internal/download.py. The manipulation with the input value ../ leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The pip package before 19.2 for Python allows Directory Traversal when a URL is given in an install command, because a Content-Disposition header can have ../ in a filename, as demonstrated by overwriting the /root/.ssh/authorized_keys file. This occurs in _download_http_url in _internal/download.py.

The weakness was disclosed 09/04/2020. The identification of this vulnerability is CVE-2019-20916 since 09/04/2020. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 19.2 eliminates this vulnerability.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: pip Package 19.2

Timelineinfo

09/04/2020 🔍
09/04/2020 +0 days 🔍
09/05/2020 +1 days 🔍
09/05/2020 +0 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2019-20916 (🔍)
GCVE (CVE): GCVE-0-2019-20916
GCVE (VulDB): GCVE-100-160757

Entryinfo

Created: 09/05/2020 08:34
Updated: 09/05/2020 08:39
Changes: 09/05/2020 08:34 (40), 09/05/2020 08:39 (17)
Complete: 🔍
Cache ID: 216::103

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