CVE-2017-17405
CVE-2017-17405
Vexday Risk Score
45Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
Exploit maturity
Proof of concept
Public proof of concept exists, but not yet automated.
CVSS —EPSS 73.8%KEV nãoPoC públicaNuclei —Metasploit —Patch referenciado
Lifecycle
02 Dec 2017Public PoC
15 Dec 2017Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
Ruby before 2.4.3 allows Net::FTP command injection. Net::FTP#get, getbinaryfile, gettextfile, put, putbinaryfile, and puttextfile use Kernel#open to open a local file. If the localfile argument starts with the "|" pipe character, the command following the pipe character is executed. The default value of localfile is File.basename(remotefile), so malicious FTP servers could cause arbitrary command execution.
Affected products
n/a · n/apublic PoCs found — 2
cve_referencewww.exploit-db.com/exploits/43381/unverifiedexploitdbwww.exploit-db.com/exploits/43381unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://access.redhat.com/errata/RHSA-2018:0378https://access.redhat.com/errata/RHSA-2018:0583https://access.redhat.com/errata/RHSA-2018:0584https://access.redhat.com/errata/RHSA-2018:0585https://access.redhat.com/errata/RHSA-2019:2806https://lists.debian.org/debian-lts-announce/2017/12/msg00024.htmlhttps://lists.debian.org/debian-lts-announce/2017/12/msg00025.htmlhttps://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlhttps://www.debian.org/security/2018/dsa-4259https://www.exploit-db.com/exploits/43381/https://www.ruby-lang.org/en/news/2017/12/14/net-ftp-command-injection-cve-2017-17405/https://www.ruby-lang.org/en/news/2017/12/14/ruby-2-4-3-released/