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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current 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.
** DISPUTED ** 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."
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
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** DISPUTED ** 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
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 mor
Initial Analysis by NIST6/04/2020 12:18:31 PM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:a:openbsd:openssh:8.2:*:*:*:*:*:*:*
Added
CVSS V2
NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Added
CVSS V3.1
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Added
CWE
NIST CWE-20
Changed
Reference Type
https://github.com/openssh/openssh-portable/commit/955854cafca88e0cdcd3d09ca1ad4ada465364a1 No Types Assigned
https://github.com/openssh/openssh-portable/commit/955854cafca88e0cdcd3d09ca1ad4ada465364a1 Patch, Third Party Advisory
Changed
Reference Type
https://github.com/openssh/openssh-portable/commit/aad87b88fc2536b1ea023213729aaf4eaabe1894 No Types Assigned
https://github.com/openssh/openssh-portable/commit/aad87b88fc2536b1ea023213729aaf4eaabe1894 Third Party Advisory
Changed
Reference Type
https://www.openssh.com/txt/release-8.3 No Types Assigned