CVE-2021-23355
CVE-2021-23355 is a medium-severity vulnerability in Ps-kill Project Ps-kill with a CVSS 3.x base score of 5.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: Medium (CVSS 3.x base score 5.6)
- CVSS v2: 7.5
- EPSS exploit prediction: 1% (64th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Ps-kill Project Ps-kill
- Published:
- Last modified:
Description
This affects all versions of package ps-kill. If (attacker-controlled) user input is given to the kill function, it is possible for an attacker to execute arbitrary commands. This is due to use of the child_process exec function without input sanitization in the index.js file. PoC (provided by reporter): var ps_kill = require('ps-kill'); ps_kill.kill('$(touch success)',function(){});
Frequently asked questions
- What is CVE-2021-23355?
- This affects all versions of package ps-kill. If (attacker-controlled) user input is given to the kill function, it is possible for an attacker to execute arbitrary commands. This is due to use of the child_process exec function without input sanitization in the index.js file. PoC (provided by reporter): var ps_kill = require('ps-kill'); ps_kill.kill('$(touch success)',function(){});
- How severe is CVE-2021-23355?
- CVE-2021-23355 has a CVSS 3.x base score of 5.6, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2021-23355 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-23355?
- CVE-2021-23355 affects Ps-kill Project Ps-kill. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-23355?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-23355 published?
- CVE-2021-23355 was published on 2021-03-15 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:ps-kill_project:ps-kill:*:*:*:*:*:node.js:*:*
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