Red Hat update for httpd
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2019-10098 CVE-2020-1927 |
| CWE-ID | CWE-20 CWE-601 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
httpd24-httpd (Red Hat package) Operating systems & Components / Operating system package or component httpd24-mod_md (Red Hat package) Operating systems & Components / Operating system package or component |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Input validation error
EUVDB-ID: #VU20374
Risk: Medium
CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]
CVE-ID: CVE-2019-10098
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists due to incorrect handling of encoded line break characters within rewrite rules. A remote attacker can send a specially crafted HTTP request and potentially bypass security restrictions.
Install updates from vendor's website.
httpd24-httpd (Red Hat package): 2.4.34-7.el6 - 2.4.34-15.el7
httpd24-mod_md (Red Hat package): before 2.0.8-1.el7
CPE2.3- cpe:2.3:a:red_hat:httpd24-httpd_redhat_package:2.4.34-7.el6:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:httpd24-httpd_redhat_package:2.4.34-7.el7:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:httpd24-httpd_redhat_package:2.4.34-8.el6:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:httpd24-mod_md_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2020:2263
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
2) Open redirect
EUVDB-ID: #VU26527
Risk: Medium
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-1927
CWE-ID:
CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
httpd24-httpd (Red Hat package): 2.4.34-7.el6 - 2.4.34-15.el7
httpd24-mod_md (Red Hat package): before 2.0.8-1.el7
CPE2.3- cpe:2.3:a:red_hat:httpd24-httpd_redhat_package:2.4.34-7.el6:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:httpd24-httpd_redhat_package:2.4.34-7.el7:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:httpd24-httpd_redhat_package:2.4.34-8.el6:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:httpd24-mod_md_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2020:2263
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
