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saintSAINT CorporationSAINT:7F7F4076726A78FD0C351414F21D5575
HistoryNov 24, 2023 - 12:00 a.m.

Sophos Web Appliance UsrBlocked.php command injection

2023-11-2400:00:00
SAINT Corporation
my.saintcorporation.com
26
sophos web appliance
usrblocked.php
command injection
cve-2023-1671
http security
vulnerability
remote attackers
upgrade
sophos web appliance 4.3.10.4

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.4 High

AI Score

Confidence

Low

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.962 High

EPSS

Percentile

99.5%

Added: 11/24/2023
CVE: CVE-2023-1671

Background

Sophos Web Appliance is a web proxy providing HTTP security.

Problem

A vulnerability in **UsrBlocked.php** allows remote attackers to inject arbitrary commands into an HTTP request.

Resolution

Upgrade to Sophos Web Appliance 4.3.10.4 or higher.

References

<https://www.sophos.com/en-us/security-advisories/sophos-sa-20230404-swa-rce&gt;
<https://vulncheck.com/blog/cve-2023-1671-analysis&gt;

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.4 High

AI Score

Confidence

Low

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.962 High

EPSS

Percentile

99.5%