CVE-2020-12062
Summary
| CVE | CVE-2020-12062 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-06-01 16:15:00 UTC |
| Updated | 2023-11-07 03:15:00 UTC |
| Description | ** 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." |
Risk And Classification
Problem Types: CWE-20
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| oss-security - Announce: OpenSSH 8.3 released | MISC | www.openwall.com | Mailing List, Release Notes, Third Party Advisory |
| www.openssh.com/txt/release-8.3 | MISC | www.openssh.com | Release Notes, Vendor Advisory |
| upstream: when receving a file in sink(), be careful to send at · openssh/openssh-portable@aad87b8 · GitHub | MISC | github.com | Third Party Advisory |
| upstream: another case where a utimes() failure could make scp send · openssh/openssh-portable@955854c · GitHub | MISC | github.com | Patch, Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)