// For flags

CVE-2022-29154

rsync: remote arbitrary files write inside the directories of connecting peers

Severity Score

7.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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).

Se ha detectado un problema en rsync versiones anteriores a 3.2.5, que permite a servidores remotos maliciosos escribir archivos arbitrarios dentro de los directorios de los pares conectados. El servidor elige quĆ© archivos/directorios son enviados al cliente. Sin embargo, el cliente rsync no lleva a cabo una comprobaciĆ³n suficiente de los nombres de los archivos. Un servidor rsync malicioso (o un atacante de tipo Man-in-The-Middle) puede sobrescribir archivos arbitrarios en el directorio de destino del cliente rsync y en los subdirectorios (por ejemplo, sobrescribir el archivo .ssh/authorized_keys)

A flaw was found in rsync that is triggered by a victim rsync user/client connecting to a malicious rsync server. The server can copy and overwrite arbitrary files in the client's rsync target directory and subdirectories. This flaw allows a malicious server, or in some cases, another attacker who performs a man-in-the-middle attack, to potentially overwrite sensitive files on the client machine, resulting in further exploitation.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-04-13 CVE Reserved
  • 2022-08-02 CVE Published
  • 2022-09-14 First Exploit
  • 2024-03-23 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-20: Improper Input Validation
  • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Samba
Search vendor "Samba"
Rsync
Search vendor "Samba" for product "Rsync"
< 3.2.5
Search vendor "Samba" for product "Rsync" and version " < 3.2.5"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
Fedora
Search vendor "Fedoraproject" for product "Fedora"
35
Search vendor "Fedoraproject" for product "Fedora" and version "35"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
Fedora
Search vendor "Fedoraproject" for product "Fedora"
36
Search vendor "Fedoraproject" for product "Fedora" and version "36"
-
Affected