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Vulnerability details: VCID-2az6-f47r-aaap
Vulnerability ID VCID-2az6-f47r-aaap
Aliases CVE-2020-12062
Summary ** 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."
Status Disputed
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-20 Improper Input Validation
System Score Found at
cvssv3 0.0 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12062.json
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epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-12062
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1854145
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-12062
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-12062
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-12062
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12062.json
https://api.first.org/data/v1/epss?cve=CVE-2020-12062
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12062
https://github.com/openssh/openssh-portable/commit/955854cafca88e0cdcd3d09ca1ad4ada465364a1
https://github.com/openssh/openssh-portable/commit/aad87b88fc2536b1ea023213729aaf4eaabe1894
https://www.openssh.com/txt/release-8.3
https://www.openwall.com/lists/oss-security/2020/05/27/1
1854145 https://bugzilla.redhat.com/show_bug.cgi?id=1854145
cpe:2.3:a:openbsd:openssh:8.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:openbsd:openssh:8.2:*:*:*:*:*:*:*
CVE-2020-12062 https://nvd.nist.gov/vuln/detail/CVE-2020-12062
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-12062.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12062
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12062
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-12062
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.47501
EPSS Score 0.00122
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
2024-09-22T01:57:20.017468+00:00 NVD CVE Status Improver Improve https://cveawg.mitre.org/api/cve/CVE-2020-12062 34.0.1