CVE-2021-31401
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
An issue was discovered in tcp_rcv() in nptcp.c in HCC embedded InterNiche 4.0.1. The TCP header processing code doesn't sanitize the value of the IP total length field (header length + data length). With a crafted IP packet, an integer overflow occurs whenever the value of the IP data length is calculated by subtracting the length of the header from the total length of the IP packet.
Overview
- CVE ID
- CVE-2021-31401
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-08-19T12:15:08
- Last Modified Date
- 2021-08-26T18:09:19
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:hcc-embedded:nichestack:*:*:*:*:*:*:*:* | 1 | OR | 4.3 | |
| AND | ||||
| cpe:2.3:o:siemens:sentron_3wl_com35_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.2.0 | |
| cpe:2.3:h:siemens:sentron_3wl_com35:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:siemens:sentron_3wa_com190_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.0.0 | |
| cpe:2.3:h:siemens:sentron_3wa_com190:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-789208.pdf | Mitigation Third Party Advisory |
| https://www.kb.cert.org/vuls/id/608209 | Third Party Advisory US Government Resource |
| https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ | Mitigation Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-31401 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31401 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:55:54 | Added to TrackCVE | |||
| 2022-12-05 08:34:08 | 2021-08-19T12:15Z | 2021-08-19T12:15:08 | CVE Published Date | updated |
| 2022-12-05 08:34:08 | 2021-08-26T18:09:19 | CVE Modified Date | updated | |
| 2022-12-05 08:34:08 | Analyzed | Vulnerability Status | updated |