Sophos Web Appliance up to 4.3.9.1 Warn-proceed command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Sophos Web Appliance. Impacted is an unknown function of the component Warn-proceed Handler. The manipulation results in command injection. This vulnerability is identified as CVE-2023-1671. The attack can be executed remotely. Additionally, an exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical has been found in Sophos Web Appliance. Affected is some unknown functionality of the component Warn-proceed Handler. The manipulation with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A pre-auth command injection vulnerability in the warn-proceed handler of Sophos Web Appliance older than version 4.3.10.4 allows execution of arbitrary code.

The weakness was released 04/04/2023. The advisory is shared for download at sophos.com. This vulnerability is traded as CVE-2023-1671 since 03/28/2023. Technical details are unknown but a public exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/12/2024). The MITRE ATT&CK project declares the attack technique as T1202.

The exploit is shared for download at exploit-db.com. It is declared as attacked. This issue was added on 11/16/2023 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 12/07/2023:

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Upgrading to version 4.3.10.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (51396). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.7

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector (Sophos Limited): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Web Appliance 4.3.10.4

Timelineinfo

03/28/2023 🔍
04/04/2023 +7 days 🔍
04/04/2023 +0 days 🔍
12/12/2024 +618 days 🔍

Sourcesinfo

Vendor: sophos.com

Advisory: sophos.com
Status: Confirmed

CVE: CVE-2023-1671 (🔍)
GCVE (CVE): GCVE-0-2023-1671
GCVE (VulDB): GCVE-100-224856
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/04/2023 15:56
Updated: 12/12/2024 02:19
Changes: 04/04/2023 15:56 (48), 04/21/2023 21:49 (1), 04/30/2024 06:20 (26), 06/17/2024 16:39 (12), 09/29/2024 04:24 (1), 12/12/2024 02:19 (3)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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