Vector Strings

Severity Score: 7.5
Severity: HIGH
Exploitability Score: 3.9
Impact Score: 3.6

Access Vector (AV):
Access Complexity (AC):
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

Published Date: 2020-06-01
Last Modified: 2024-08-04

CVE-2020-12062

About:
The scp client in OpenSSH 8.2 incorrectly sends duplicate responses to the server upon a utimes system call failure, which allows a malicious unprivileged user on the remote server to overwrite arbitrary files in the client's download directory by creating a crafted subdirectory anywhere on the remote server. The victim must use the command scp -rp to download a file hierarchy containing, anywhere inside, this crafted subdirectory. NOTE: the vendor points out that "this attack can achieve no more than a hostile peer is already able to achieve within the scp protocol" and "utimes does not fail under normal circumstances.

References

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