CVE-2021-32825

Katalog CVE

CVSS 9.1 · Critical EPSS 0,92%

Kerentanan Relative Path Traversal pada bblfshd project bblfshd. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

bblfshd is an open source self-hosted server for source code parsing. In bblfshd before commit 4265465b9b6fb5663c30ee43806126012066aad4 there is a "zipslip" vulnerability. The unsafe handling of symbolic links in an unpacking routine may enable attackers to read and/or write to arbitrary locations outside the designated target folder. This issue may lead to arbitrary file write (with same permissions as the program running the unpack operation) if the attacker can control the archive file. Additionally, if the attacker has read access to the unpacked files, he may be able to read arbitrary system files the parent process has permissions to read. For more details including a PoC see the referenced GHSL-2020-258.

Rincian

Terbit di NVD

16 Agustus 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-23: Relative Path Traversal
CWE-59: Improper Link Resolution Before File Access ('Link Following')

EPSS (30 hari)

0,92% peluang dieksploitasi; lebih tinggi dari 59,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/bblfsh/bblfshd/commit/4265465b9b6fb5663c30ee43806126012066aad4 patch · advisory pihak ketiga
• https://github.com/bblfsh/bblfshd/pull/341 patch · advisory pihak ketiga
• https://securitylab.github.com/advisories/GHSL-2020-258-zipslip-bblfshd/ exploit · advisory pihak ketiga