CVE-2021-32841

Katalog CVE

CVSS 5.3 · Medium EPSS 1,1%

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 1.3.0 and prior to version 1.3.3, a check was added if the destination file is under destination directory. However, it is not enforced that `destDir` ends with slash. If the `destDir` is not slash terminated like `/home/user/dir` it is possible to create a file with a name thats begins with the destination 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 contains a patch for 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)

1,1% peluang dieksploitasi; lebih tinggi dari 64,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/icsharpcode/SharpZipLib/commit/5c3b293de5d65b108e7f2cd0ea8f81c1b8273f78 patch · advisory pihak ketiga
• 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