Multiple vulnerabilities in Apache HTTP Server

Published: 2020-04-02

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2020-1927 CVE-2020-1934
CWE-ID	CWE-601 CWE-457
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Apache HTTP Server Server applications / Web servers
Vendor	Apache Foundation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Open redirect

EUVDB-ID: #VU26527

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-1927

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Exploit availability: No

Description

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data in some "mod_rewrite" configurations. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apache HTTP Server: 2.4.0 - 2.4.41

CPE2.3

cpe:2.3:a:apache_foundation:apache_http_server:2.4.41:*:*:*:*:*:*:*
Full software list in CPE2.3 format available after registration.

External links

http://httpd.apache.org/security/vulnerabilities_24.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Use of Uninitialized Variable

EUVDB-ID: #VU26528