SB2019100814 - Spoofing attack in Internet Explorer and Edge

Description

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error (CVE-ID: CVE-2019-0608)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to insufficient validation of HTTP response headers. A remote attacker that controls a web server can send specially crafted HTTP response headers and impersonate a user request by crafting HTTP queries.

2) Input validation error (CVE-ID: CVE-2019-1357)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to spoofing attack.

The vulnerability exists due to insufficient validation of browser cookies. A remote attacker can send a specially crafted HTTP response and overwrite a secure cookie with an insecure one. This can be used to construct an attack chain against applications that rely on cookie security.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0608
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1357