CVE-2021-32635

Katalog CVE

CVSS 6.3 · Medium EPSS 1,4%

Kerentanan Improper Input Validation pada sylabs singularity. Skor CVSS 3.1 6.3 (Medium) menurut NVD.

Deskripsi (NVD)

Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys.

Rincian

Terbit di NVD

28 Mei 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation
CWE-923: Improper Restriction of Communication Channel to Intended Endpoints

EPSS (30 hari)

1,4% peluang dieksploitasi; lebih tinggi dari 72,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/sylabs/singularity/releases/tag/v3.7.4 advisory pihak ketiga
• https://github.com/sylabs/singularity/security/advisories/GHSA-5mv9-q7fq-9394 advisory pihak ketiga
• https://security.gentoo.org/glsa/202107-50 advisory pihak ketiga