Sophos XG Firewall up to 17.5 MR12 HTTPS Bookmark buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Sophos XG Firewall up to 17.5 MR12. This impacts an unknown function of the component HTTPS Bookmark Handler. This manipulation causes buffer overflow. This vulnerability is handled as CVE-2020-15069. The attack can be initiated remotely. Additionally, an exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability has been found in Sophos XG Firewall up to 17.5 MR12 (Firewall Software) and classified as critical. Affected by this vulnerability is an unknown code of the component HTTPS Bookmark Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Sophos XG Firewall 17.x through v17.5 MR12 allows a Buffer Overflow and remote code execution via the HTTP/S Bookmarks feature for clientless access. Hotfix HF062020.1 was published for all firewalls running v17.x.

The weakness was released 06/29/2020 (Website). The advisory is shared at community.sophos.com. This vulnerability is known as CVE-2020-15069 since 06/25/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but an exploit is available.

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 02/06/2025 with a due date of 02/27/2025:

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

Applying the patch HF062020 is able to eliminate this problem.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

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

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: HF062020

Timelineinfo

06/25/2020 🔍
06/29/2020 +4 days 🔍
06/30/2020 +1 days 🔍
02/06/2025 +1682 days 🔍

Sourcesinfo

Vendor: sophos.com

Advisory: community.sophos.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-15069 (🔍)
GCVE (CVE): GCVE-0-2020-15069
GCVE (VulDB): GCVE-100-157441
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/30/2020 08:48
Updated: 02/06/2025 21:53
Changes: 06/30/2020 08:48 (39), 06/30/2020 08:53 (18), 10/28/2020 06:39 (1), 02/06/2025 18:46 (30), 02/06/2025 21:53 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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