CVE-2020-12062
- State
- Published
- Severity
- Not scored
- Published
- Jun 1, 2020
- Updated
- Oct 14, 2026
- Reserved
- Apr 22, 2020
Description
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://www.openwall.com/lists/oss-security/2020/05/27/1
- https://www.openssh.com/txt/release-8.3
- https://github.com/openssh/openssh-portable/commit/955854cafca88e0cdcd3d09ca1ad4ada465364a1
- https://github.com/openssh/openssh-portable/commit/aad87b88fc2536b1ea023213729aaf4eaabe1894
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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