CVE-2020-27009
CVSS V2 Medium 6.8
CVSS V3 High 8.1
Description
A vulnerability has been identified in Nucleus NET (All versions < V5.2), Nucleus Source Code (Versions including affected DNS modules). The DNS domain name record decompression functionality does not properly validate the pointer offset values. The parsing of malformed responses could result in a write past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to execute code in the context of the current process or cause a denial-of-service condition.
Overview
- CVE ID
- CVE-2020-27009
- Assigner
- productcert@siemens.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-04-22T21:15:09
- Last Modified Date
- 2022-08-05T17:13:46
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:* | 1 | OR | 5.2 | |
| cpe:2.3:a:siemens:nucleus_source_code:-:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.1
- Base Severity
- HIGH
- Exploitability Score
- 2.2
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-185699.pdf | Vendor Advisory |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-103-04 | Third Party Advisory US Government Resource |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-27009 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27009 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:30:13 | Added to TrackCVE | |||
| 2022-12-06 02:23:29 | 2021-04-22T21:15Z | 2021-04-22T21:15:09 | CVE Published Date | updated |
| 2022-12-06 02:23:29 | 2022-08-05T17:13:46 | CVE Modified Date | updated | |
| 2022-12-06 02:23:29 | Analyzed | Vulnerability Status | updated |