RCE in Nim-Lang Nim
CVE-2021-21372
Nimble is a package manager for the Nim programming language. In Nim release version before versions 1.2.10 and 1.4.4, Nimble doCmd is used in different places and can be leveraged to execute arbitrary commands. An attacker can craft a malicious entry in the packages.json package list to trigger code execution.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.036 (89.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: -0.000
Affected products
- Nim-Lang Nim
- Nim-Lang Security — versions < 1.2.10, >= 1.4.0, < 1.4.4
Weakness classification (CWE)
References
- consensys.net/diligence/vulnerabilities/nim-insecure-ssl-tls-defaults-remote-co… (Exploit, Third Party Advisory)
- github.com/nim-lang/security/security/advisories/GHSA-rg9f-w24h-962p (Third Party Advisory)
- github.com/nim-lang/nimble/blob/master/changelog.markdown (Third Party Advisory, Release Notes)
- github.com/nim-lang/nimble/commit/7bd63d504a4157b8ed61a51af47fb086ee818c37 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21372?
- CVE-2021-21372 is a high-severity vulnerability in Nim-Lang Nim, classified under Improper Input Validation. CVSS score: 8.3/10. Published 2021-03-26.
- How severe is CVE-2021-21372?
- High severity. CVSS v3 base score is 8.3 out of 10.