Vulnerability · Published Nov 30, 2021 · Assigned by @huntrdev

CVE-2021-3727OS Command Injection in ohmyzsh/ohmyzsh

High 7.5

In plain English

A high-severity OS command injection in ohmyzsh/ohmyzsh from ohmyzsh. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)1.0%top 36.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

# Vulnerability in `rand-quote` and `hitokoto` plugins **Description**: the `rand-quote` and `hitokoto` fetch quotes from quotationspage.com and hitokoto.cn respectively, do some process on them and then use `print -P` to print them. If these quotes contained the proper symbols, they could trigger command injection. Given that they're an external API, it's not possible to know if the quotes are safe to use. **Fixed in**: [72928432](https://github.com/ohmyzsh/ohmyzsh/commit/72928432). **Impacted areas**: - `rand-quote` plugin (`quote` function). - `hitokoto` plugin (`hitokoto` function).

Affected products (as reported)

Vendor	Product	Versions
ohmyzsh	ohmyzsh/ohmyzsh	unspecified – before 72928432

Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://github.com/ohmyzsh/ohmyzsh/commit/72928432 x_refsource_MISC