What is CVE-2021-46825?

CVE-2021-46825 is a critical-severity vulnerability in Broadcom Advanced Secure Gateway, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 9.1/10. Published 2022-07-07.

How severe is CVE-2021-46825?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Broadcom Advanced Secure Gateway

CVE-2021-46825

Symantec Advanced Secure Gateway (ASG) and ProxySG are susceptible to an HTTP desync vulnerability. When a remote unauthenticated attacker and other web clients communicate through the proxy with the same web server, the attacker can send crafted HTTP requests and cause the proxy to forward web server responses to unintended clients. Severity/CVSSv3: High / 8.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Vulnerability class: HTTP Request Smuggling

EPSS: 0.016 (72.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Broadcom Advanced_secure_gateway — versions 6.7, 7.3
Broadcom Proxysg — versions 6.7, 7.3
N/a Advance Secure Gateway And Proxysg — versions 6.7, 7.3

Weakness classification (CWE)

CWE-444 — Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling)

References

secure@symantec.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-46825?: CVE-2021-46825 is a critical-severity vulnerability in Broadcom Advanced Secure Gateway, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 9.1/10. Published 2022-07-07.
How severe is CVE-2021-46825?: Critical severity. CVSS v3 base score is 9.1 out of 10.