SharpZipLib up to 1.3.2 File Creation _baseDirectory path traversal

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in SharpZipLib up to 1.3.2. The impacted element is an unknown function of the component File Creation Handler. Executing a manipulation of the argument _baseDirectory can lead to path traversal. The identification of this vulnerability is CVE-2021-32842. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in SharpZipLib up to 1.3.2 and classified as critical. This vulnerability affects some unknown functionality of the component File Creation Handler. The manipulation of the argument _baseDirectory with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 01/27/2022 as GHSL-2021-125. The advisory is shared for download at securitylab.github.com. This vulnerability was named CVE-2021-32842 since 05/12/2021. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

Upgrading to version 1.3.3 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

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

CNA Base Score: 4.0
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

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

Physical: Partially
Local: Yes
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: SharpZipLib 1.3.3

Timelineinfo

05/12/2021 🔍
01/27/2022 +260 days 🔍
01/27/2022 +0 days 🔍
01/29/2022 +2 days 🔍

Sourcesinfo

Advisory: GHSL-2021-125
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-32842 (🔍)
GCVE (CVE): GCVE-0-2021-32842
GCVE (VulDB): GCVE-100-191704

Entryinfo

Created: 01/27/2022 10:14
Updated: 01/29/2022 11:53
Changes: 01/27/2022 10:14 (51), 01/29/2022 11:53 (2)
Complete: 🔍
Cache ID: 216::103

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