CVE-2020-24613

CVSS V2 Medium 4.9 CVSS V3 Medium 6.8
Description
wolfSSL before 4.5.0 mishandles TLS 1.3 server data in the WAIT_CERT_CR state, within SanityCheckTls13MsgReceived() in tls13.c. This is an incorrect implementation of the TLS 1.3 client state machine. This allows attackers in a privileged network position to completely impersonate any TLS 1.3 servers, and read or modify potentially sensitive information between clients using the wolfSSL library and these TLS servers.
Overview
  • CVE ID
  • CVE-2020-24613
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-08-24T22:15:10
  • Last Modified Date
  • 2020-09-01T19:42:57
Weakness Enumerations
CWE URL
CWE-295 http://cwe.mitre.org/data/definitions/295.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:* 1 OR 4.5.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:S/C:P/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 4.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 6.8
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 6.8
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.6
  • Impact Score
  • 5.2
References
Reference URL Reference Tags
https://research.nccgroup.com/2020/08/24/technical-advisory-wolfssl-tls-1-3-client-man-in-the-middle-attack/ Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-24613
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24613
History
Created Old Value New Value Data Type Notes
2022-05-10 16:27:21 Added to TrackCVE
2022-12-04 21:27:57 2020-08-24T22:15Z 2020-08-24T22:15:10 CVE Published Date updated
2022-12-04 21:27:57 2020-09-01T19:42:57 CVE Modified Date updated
2022-12-04 21:27:57 Analyzed Vulnerability Status updated