CVE-2017-9800
Publication date 10 August 2017
Last updated 24 July 2024
Ubuntu priority
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://.
From the Ubuntu Security Team
Joern Schneeweisz discovered that Subversion did not properly handle host names in 'svn+ssh://' URLs. A remote attacker could use this to construct a subversion repository that when accessed could run arbitrary code with the privileges of the user.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| subversion | ||
| 16.04 LTS xenial |
Fixed 1.9.3-2ubuntu1.1
|
|
| 14.04 LTS trusty |
Fixed 1.8.8-1ubuntu3.3
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
9.8 · Critical
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-3388-1
- Subversion vulnerabilities
- 11 August 2017
- USN-3388-2
- Subversion vulnerabilities
- 24 October 2017