Open Redirect in Apache Http Server
CVE-2020-1927
In Apache HTTP Server 2.4.0 to 2.4.41, redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an an unexpected URL within the request URL.
Vulnerability class: Open Redirect
EPSS: 0.567 (99.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Apache Http Server — versions 2.4.0 to 2.4.41
- Apache Http_server
- Broadcom Brocade_fabric_operating_system
- Netapp Oncommand_unified_manager_core_package
- Oracle Communications_element_manager — versions 8.1.1, 8.2.0, 8.2.1
- Oracle Communications_session_report_manager — versions 8.1.1, 8.2.0, 8.2.1
- Oracle Communications_session_route_manager — versions 8.1.1, 8.2.0, 8.2.1
- Oracle Enterprise_manager_ops_center — versions 12.4.0.0
- Oracle Instantis_enterprisetrack
- Oracle Sd-wan_aware — versions 8.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- security@apache.org (Patch, Third Party Advisory, x_refsource_MISC)
- security@apache.org (x_refsource_CONFIRM, Vendor Advisory)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-1927?
- CVE-2020-1927 is a medium-severity vulnerability in Apache Http Server, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2020-04-02.
- How severe is CVE-2020-1927?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2020-1927 known to be exploited?
- 17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.