CVE Vulnerability

CVE-2021-40524

In Pure-FTPd before 1.0.50, an incorrect max_filesize quota mechanism in the server allows attackers to upload files of unbounded size, which may lead to denial of service or a server hang. This occurs because a certain greater-than-zero test does not anticipate an initial -1 value. (Versions 1.0.23 through 1.0.49 are affected.)

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/jedisct1/pure-ftpd/pull/158 Exploit Third Party Advisory
https://github.com/jedisct1/pure-ftpd/commit/37ad222868e52271905b94afea4fc780d83294b4 Patch Third Party Advisory
https://github.com/jedisct1/pure-ftpd/compare/1.0.49...1.0.50 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
Information

Published : 2021-09-05 07:15

Updated : 2021-11-26 07:49

NVD link : CVE-2021-40524

Mitre link : CVE-2021-40524

Products Affected
No products.
CWE
CWE-434