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CVE-2017-0901

CVE-2017-0901

EPSS 29.4%CWE-22
RubyGems version 2.6.12 and earlier fails to validate specification names, allowing a maliciously crafted gem to potentially overwrite any file on the filesystem.
Affected products
HackerOne · RubyGems
public PoCs found — 2
cve_referencewww.exploit-db.com/exploits/42611/unverifiedexploitdbwww.exploit-db.com/exploits/42611unverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
http://blog.rubygems.org/2017/08/27/2.6.13-released.htmlhttps://access.redhat.com/errata/RHSA-2017:3485https://access.redhat.com/errata/RHSA-2018:0378https://access.redhat.com/errata/RHSA-2018:0583https://access.redhat.com/errata/RHSA-2018:0585https://github.com/rubygems/rubygems/commit/ad5c0a53a86ca5b218c7976765c0365b91d22cb2https://hackerone.com/reports/243156https://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlhttps://security.gentoo.org/glsa/201710-01https://usn.ubuntu.com/3553-1/https://usn.ubuntu.com/3685-1/https://www.debian.org/security/2017/dsa-3966