CVE-2019-5484 — Bower before 1

Bower before 1.8.8 has a path traversal vulnerability permitting file write in arbitrary locations via install command, which allows attackers to write arbitrary files when a malicious package is extracted.

01What is this vulnerability?

Bower before 1.8.8 has a path traversal vulnerability permitting file write in arbitrary locations via install command, which allows attackers to write arbitrary files when a malicious package is extracted.

02Affected products

Vendor	Product	Versions
n	a / bower	Fixed in >=1.8.8

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-09-13T17:30:23.000Z
• Last modified: 2024-08-04T19:54:53.576Z

09References

• hackerone.com — https://hackerone.com/reports/473811
• snyk.io — https://snyk.io/blog/severe-security-vulnerability-in-bowers-zip-archive-extract…
• github.com — https://github.com/bower/bower/commit/45c6bfa86f6e57731b153baca9e0b41a1cc699e3
• lists.apache.org — https://lists.apache.org/thread.html/r8ba4c628fba7181af58817d452119481adce4ba92e…
• lists.apache.org — https://lists.apache.org/thread.html/rb5ac16fad337d1f3bb7079549f97d8166d0ef30826…