CVE-2020-14145
CVSS V2 Medium 4.3
CVSS V3 Medium 5.9
Description
The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client). NOTE: some reports state that 8.5 and 8.6 are also affected.
Overview
- CVE ID
- CVE-2020-14145
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-06-29T18:15:11
- Last Modified Date
- 2022-04-28T19:34:17
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* | 1 | OR | 5.7 | 8.4 |
| cpe:2.3:a:openbsd:openssh:8.4:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:openbsd:openssh:8.5:-:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:openbsd:openssh:8.6:-:*:*:*:*:*:* | 1 | OR | ||
| AND | ||||
| cpe:2.3:o:netapp:aff_a700s_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:netapp:aff_a700s:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:vmware_vsphere:*:* | 1 | OR | 9.5 | |
| cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:netapp:hci_storage_node:-:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 5.9
- Base Severity
- MEDIUM
- Exploitability Score
- 2.2
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/openssh/openssh-portable/compare/V_8_3_P1...V_8_4_P1 | Patch Third Party Advisory |
| https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/ | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20200709-0004/ | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2020/12/02/1 | Mailing List Patch Third Party Advisory |
| https://anongit.mindrot.org/openssh.git/commit/?id=b3855ff053f5078ec3d3c653cdaedefaa5fc362d | Patch Third Party Advisory |
| https://github.com/ssh-mitm/ssh-mitm/blob/master/ssh_proxy_server/plugins/session/cve202014145.py | Third Party Advisory |
| https://docs.ssh-mitm.at/CVE-2020-14145.html | Third Party Advisory |
| https://security.gentoo.org/glsa/202105-35 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-14145 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14145 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-08 06:20:42 | Added to TrackCVE | |||
| 2022-12-04 18:57:30 | 2020-06-29T18:15Z | 2020-06-29T18:15:11 | CVE Published Date | updated |
| 2022-12-04 18:57:30 | 2022-04-28T19:34:17 | CVE Modified Date | updated | |
| 2022-12-04 18:57:30 | Analyzed | Vulnerability Status | updated |