Oh My Zsh
CVE-2021-3727
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
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. Impacted areas: - rand-quote plugin (quote function). - hitokoto plugin (hitokoto function).
AnalysisAI
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. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This OS Command Injection vulnerability could allow attackers to execute arbitrary operating system commands on the host.
Technical ContextAI
This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host.
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. Impacted areas: - rand-quote plugin (quote function). - hitokoto plugin (hitokoto function). Affected products include: Planetargon Oh My Zsh.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.
# Vulnerability in `pygmalion`, `pygmalion-virtualenv` and `refined` themes **Description**: these themes use `print -P`
# Vulnerability in `title` function **Description**: the `title` function defined in `lib/termsupport.zsh` uses `print`
Vulnerability in dirhistory plugin Description: the widgets that go back and forward in the directory history, triggered
ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command. Rated high severity (CVSS 7.
Same weakness CWE-78 – OS Command Injection
View allSame technique Command Injection
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External POC / Exploit Code
Leaving vuln.today