An issue was discovered in rcp in MIT krb5-appl through 1.0.3. Due to the rcp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the rcp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious rcp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the rcp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file). This issue is similar to CVE-2019-6111 and CVE-2019-7283. NOTE: MIT krb5-appl is not supported upstream but is shipped by a few Linux distributions. The affected code was removed from the supported MIT Kerberos 5 (aka krb5) product many years ago, at version 1.8.
References
Link Resource
https://bugzilla.suse.com/show_bug.cgi?id=1131109 Exploit Issue Tracking Third Party Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2021-02-02T17:23:58

Updated: 2021-02-02T17:23:58

Reserved: 2021-02-02T00:00:00


Link: CVE-2019-25017

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2021-02-02T18:15:10.937

Modified: 2021-07-21T11:39:23.747


Link: CVE-2019-25017

JSON object: View

cve-icon Redhat Information

No data.

CWE