Sensitive Information Exposure in Boa Web Server by Acme Corp.
CVE-2021-33558

7.5HIGH

Key Information:

Vendor

Boa

Status
Boa
Vendor
CVE Published:
27 May 2021

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 89%

What is CVE-2021-33558?

The Boa web server version 0.94.13 is susceptible to a misconfiguration that may allow remote attackers to access sensitive information. This issue arises from the existence of improperly secured files such as backup.html, preview.html, and config.js. Although these files are not part of the default Boa installation, their presence on a specific site can lead to serious information leaks, making it crucial for administrators to ensure proper configuration and security measures are in place.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-33558.
Created by mdanzaruddin

CVE-2021-33558
Created by anldori

References

https://sourceforge.net/projects/boa/files/boa/0.94.13/
https://github.com/mdanzaruddin/CVE-2021-33558.
https://github.com/mdanzaruddin/CVE-2021-33558./issues/1

EPSS Score

89% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.