CVE Vulnerability

CVE-2021-43099

An Archive Extraction (AKA "Zip Slip) vulnerability exists in bbs 5.3 in the UpgradeNow function in UpgradeManageAction.java, which unzips the arbitrary upladed zip file without checking filenames. The vulnerability is exploited using a specially crafted archive that holds directory traversal filenames (e.g. ../../evil.exe).

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

4.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/diyhi/bbs/issues/51 Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:diyhi:bbs:5.3:*:*:*:*:*:*:*
Information

Published : 2022-03-28 10:15

Updated : 2022-04-04 05:29

NVD link : CVE-2021-43099

Mitre link : CVE-2021-43099

Products Affected
No products.
CWE
CWE-22