CVE-2019-25017

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.

CVSS v3 5.9 MEDIUM
CVSS v2.0 5.8 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:P

Exploitability : 8.6 / Impact : 4.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.suse.com/show_bug.cgi?id=1131109	Exploit Issue Tracking Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1131109	Exploit Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mit:krb5-appl:*:*:*:*:*:*:*:*

History

21 Nov 2024, 04:39

Type	Values Removed	Values Added
References	~~() https://bugzilla.suse.com/show_bug.cgi?id=1131109 - Exploit, Issue Tracking, Third Party Advisory~~	() https://bugzilla.suse.com/show_bug.cgi?id=1131109 - Exploit, Issue Tracking, Third Party Advisory

Information

Published : 2021-02-02 18:15

Updated : 2024-11-21 04:39

NVD link : CVE-2019-25017

Mitre link : CVE-2019-25017

CVE.ORG link : CVE-2019-25017

JSON object : View

Products Affected

mit

krb5-appl

CWE

CWE-863

Incorrect Authorization

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