CVE-2022-29154
Publication date 2 August 2022
Last updated 24 July 2024
Ubuntu priority
An issue was discovered in rsync before 3.2.5 that allows malicious remote servers to write arbitrary files inside the directories of connecting peers. The server chooses which files/directories are sent to the client. However, the rsync client performs insufficient validation of file names. A malicious rsync server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the rsync client target directory and subdirectories (for example, overwrite the .ssh/authorized_keys file).
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| rsync | ||
| 22.04 LTS jammy |
Fixed 3.2.7-0ubuntu0.22.04.2
|
|
| 20.04 LTS focal |
Fixed 3.1.3-8ubuntu0.5
|
|
| 18.04 LTS bionic |
Fixed 3.1.2-2.1ubuntu1.6
|
|
| 16.04 LTS xenial | Ignored | |
| 14.04 LTS trusty | Ignored |
Notes
mdeslaur
two additional commits were added later on...need to check if more go in before the official release
rodrigo-zaiden
Another commit was found to be part of the collection for this CVE. 4 in total seems to address it. The missing commit was added in historical order in the Patches section here.
mdeslaur
many more commits were added into 3.2.5 than what is listed below 3.2.5 introduced regressions which were fixed in 3.2.6 and 3.2.7
Patch details
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.4 · High
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-5921-1
- rsync vulnerabilities
- 6 March 2023