CVE-2021-32840

SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Prior to version 1.3.3, a TAR file entry `../evil.txt` may be extracted in the parent directory of `destFolder`. This leads to arbitrary file write that may lead to code execution. The vulnerability was patched in version 1.3.3.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3	Third Party Advisory
https://github.com/icsharpcode/SharpZipLib/commit/a0e96de70b5264f4c919b09253b1522bc7a221cc	Patch Third Party Advisory
https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/	Exploit Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:sharpziplib_project:sharpziplib:*:*:*:*:*:*:*:*

Information

Published : 2022-01-26 13:15

Updated : 2022-02-07 11:10

NVD link : CVE-2021-32840

Mitre link : CVE-2021-32840

JSON object : View

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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Products Affected

sharpziplib_project

sharpziplib

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