CVE-2021-31802
Published Apr 26, 2021
Last updated 4 years ago
Overview
- Description
- NETGEAR R7000 1.0.11.116 devices have a heap-based Buffer Overflow that is exploitable from the local network without authentication. The vulnerability exists within the handling of an HTTP request. An attacker can leverage this to execute code as root. The problem is that a user-provided length value is trusted during a backup.cgi file upload. The attacker must add a \n before the Content-Length header.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 8.8
- Impact score
- 5.9
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 8.3
- Impact score
- 10
- Exploitability score
- 6.5
- Vector string
- AV:A/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
- nvd@nist.gov
- CWE-787
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2C3E253B-84E1-4857-9C71-D3A0387989DA",
"versionEndIncluding": "1.0.11.116"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:netgear:r7000:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "C9F86FF6-AB32-4E51-856A-DDE790C0A9A6"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
]