CVE-2021-32842

Katalog CVE

CVSS 5.3 · Medium EPSS 0,90%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada sharpziplib project sharpziplib. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Starting version 1.0.0 and prior to version 1.3.3, a check was added if the destination file is under a destination directory. However, it is not enforced that `_baseDirectory` ends with slash. If the _baseDirectory is not slash terminated like `/home/user/dir` it is possible to create a file with a name thats begins as the destination directory one level up from the directory, i.e. `/home/user/dir.sh`. Because of the file name and destination directory constraints, the arbitrary file creation impact is limited and depends on the use case. Version 1.3.3 fixed this vulnerability.

Rincian

Terbit di NVD

26 Januari 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

0,90% peluang dieksploitasi; lebih tinggi dari 58,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3 release notes · advisory pihak ketiga
• https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/ exploit · advisory pihak ketiga