CVE-2020-11939
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
In nDPI through 3.2 Stable, the SSH protocol dissector has multiple KEXINIT integer overflows that result in a controlled remote heap overflow in concat_hash_string in ssh.c. Due to the granular nature of the overflow primitive and the ability to control both the contents and layout of the nDPI library's heap memory through remote input, this vulnerability may be abused to achieve full Remote Code Execution against any network inspection stack that is linked against nDPI and uses it to perform network traffic analysis.
Overview
- CVE ID
- CVE-2020-11939
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-04-23T15:15:14
- Last Modified Date
- 2021-07-21T11:39:23
Weakness Enumerations
CPE Configuration (Product)
CPE | Vulnerable | Operator | Version Start | Version End |
---|---|---|---|---|
cpe:2.3:a:ntop:ndpi:*:*:*:*:*:*:*:* | 1 | OR | 3.2 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 7.5
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
Reference URL | Reference Tags |
---|---|
https://github.com/ntop/nDPI/commit/7ce478a58b4dd29a8d1e6f4e9df2f778613d9202 | Patch Third Party Advisory |
https://securitylab.github.com/advisories/GHSL-2020-051_052-ntop-ndpi | Exploit Third Party Advisory |
Sources
Source Name | Source URL |
---|---|
NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-11939 |
MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11939 |
History
Created | Old Value | New Value | Data Type | Notes |
---|---|---|---|---|
2022-05-10 07:01:38 | Added to TrackCVE | |||
2022-12-04 15:31:43 | 2020-04-23T15:15Z | 2020-04-23T15:15:14 | CVE Published Date | updated |
2022-12-04 15:31:43 | 2021-07-21T11:39:23 | CVE Modified Date | updated | |
2022-12-04 15:31:43 | Analyzed | Vulnerability Status | updated |