SB2020101924 - Multiple vulnerabilities in Shopware

Description

This security bulletin contains information about 2 vulnerabilities.

1) Resource exhaustion (CVE-ID: N/A)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled resource consumption in cache handling when processing repeated requests that flood the cache. A remote attacker can send a large number of requests to cause a denial of service.

2) XML External Entity injection (CVE-ID: N/A)

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

CVSSv4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote user to process external entities in XML input.

The vulnerability exists due to XML external entity processing in XML parsing functionality when parsing XML input. A remote user can submit crafted XML containing external entities to process external entities in XML input.

Remediation

Install update from vendor's website.

References

• https://github.com/shopware/shopware/security/advisories/GHSA-p68v-frgx-4rjp
• https://docs.shopware.com/en/shopware-6-en/security-updates/security-update-10-2020
• https://github.com/shopware/shopware/security/advisories/GHSA-8xv9-qcr9-ww9j