Vulnerability Details : 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 category: Open redirect
Products affected by CVE-2020-1927
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:*
- Oracle » Instantis EnterprisetrackVersions from including (>=) 17.1 and up to, including, (<=) 17.3cpe:2.3:a:oracle:instantis_enterprisetrack:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_element_manager:8.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_element_manager:8.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_element_manager:8.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_session_report_manager:8.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_session_report_manager:8.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_session_report_manager:8.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_session_route_manager:8.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_session_route_manager:8.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_session_route_manager:8.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:sd-wan_aware:8.2:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- cpe:2.3:o:broadcom:brocade_fabric_operating_system:-:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:oncommand_unified_manager_core_package:-:*:*:*:*:*:*:*
Threat overview for CVE-2020-1927
Top countries where our scanners detected CVE-2020-1927
Top open port discovered on systems with this issue
80
IPs affected by CVE-2020-1927 8,212,518
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2020-1927!
*Directly or indirectly through your vendors, service providers and 3rd parties.
Powered by
attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2020-1927
15.49%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 94 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-1927
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
NIST | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2020-1927
-
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.Assigned by:
- nvd@nist.gov (Primary)
- security@apache.org (Secondary)
References for CVE-2020-1927
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A2RN46PRBJE7E7OPD4YZX5SVWV5QKGV5/
[SECURITY] Fedora 31 Update: httpd-2.4.46-1.fc31 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.apache.org/thread.html/r1719675306dfbeaceff3dc63ccad3de2d5615919ca3c13276948b9ac@%3Cdev.httpd.apache.org%3E
Re: Odd vulnerabilities_24.html output - Pony MailMailing List;Vendor Advisory
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http://www.openwall.com/lists/oss-security/2020/04/03/1
oss-security - Re: CVE-2020-1927: mod_rewrite configurations vulnerable to open redirectMailing List;Third Party Advisory
-
https://lists.apache.org/thread.html/r52a52fd60a258f5999a8fa5424b30d9fd795885f9ff4828d889cd201@%3Cdev.httpd.apache.org%3E
Odd vulnerabilities_24.html output - Pony MailMailing List;Vendor Advisory
-
http://www.openwall.com/lists/oss-security/2020/04/04/1
oss-security - Re: CVE-2020-1927: mod_rewrite configurations vulnerable to open redirectMailing List;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpujul2020.html
Oracle Critical Patch Update Advisory - July 2020Patch;Third Party Advisory
-
https://lists.apache.org/thread.html/r09bb998baee74a2c316446bd1a41ae7f8d7049d09d9ff991471e8775@%3Ccvs.httpd.apache.org%3E
svn commit: r1888194 [13/13] - /httpd/site/trunk/content/security/json/ - Pony MailMailing List;Patch;Vendor Advisory
-
https://httpd.apache.org/security/vulnerabilities_24.html
httpd 2.4 vulnerabilities - The Apache HTTP Server ProjectVendor Advisory
-
https://lists.apache.org/thread.html/r731d43caece41d78d8c6304641a02a369fd78300e7ffaf566b06bc59@%3Ccvs.httpd.apache.org%3E
svn commit: r1073158 - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-1927.json security/vulnerabilities_24.html - Pony MailMailing List;Patch;Vendor Advisory
-
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a@%3Ccvs.httpd.apache.org%3E
svn commit: r1073140 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html sMailing List;Patch;Vendor Advisory
-
https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf@%3Ccvs.httpd.apache.org%3E
svn commit: r1073143 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/ - Pony MailMailing List;Patch;Vendor Advisory
-
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E
svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ - Pony MailMailing List;Patch;Vendor Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00002.html
[security-announce] openSUSE-SU-2020:0597-1: important: Security updateMailing List;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpuApr2021.html
Oracle Critical Patch Update Advisory - April 2021Patch;Third Party Advisory
-
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E
Pony Mail!Mailing List;Patch;Vendor Advisory
-
https://security.netapp.com/advisory/ntap-20200413-0002/
April 2020 Apache HTTP Server Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://lists.apache.org/thread.html/r70ba652b79ba224b2cbc0a183078b3a49df783b419903e3dcf4d78c7@%3Ccvs.httpd.apache.org%3E
Pony Mail!Mailing List;Patch;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HYVYE2ZERFXDV6RMKK3I5SDSDQLPSEIQ/
[SECURITY] Fedora 32 Update: httpd-2.4.46-1.fc32 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.apache.org/thread.html/r6a4146bf3d1645af2880f8b7a4fd8afd696d5fd4a3ae272f49f5dc84@%3Ccvs.httpd.apache.org%3E
svn commit: r1888215 - /httpd/site/trunk/content/security/json/CVE-2020-1927.json - Pony MailMailing List;Patch;Vendor Advisory
-
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d@%3Ccvs.httpd.apache.org%3E
svn commit: r1075470 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_2Mailing List;Patch;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2021/07/msg00006.html
[SECURITY] [DLA 2706-1] apache2 security updateMailing List;Third Party Advisory
-
https://www.debian.org/security/2020/dsa-4757
Debian -- Security Information -- DSA-4757-1 apache2Third Party Advisory
-
https://lists.apache.org/thread.html/r10b853ea87dd150b0e76fda3f8254dfdb23dd05fa55596405b58478e@%3Ccvs.httpd.apache.org%3E
svn commit: r1876426 - /httpd/test/framework/trunk/t/security/CVE-2020-1927.t - Pony MailMailing List;Patch;Vendor Advisory
-
https://lists.apache.org/thread.html/rdf3e5d0a5f5c3d90d6013bccc6c4d5af59cf1f8c8dea5d9a283d13ce@%3Ccvs.httpd.apache.org%3E
svn commit: r1073139 [13/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ - Pony MailMailing List;Patch;Vendor Advisory
-
https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36@%3Ccvs.httpd.apache.org%3E
Pony Mail!Mailing List;Patch;Vendor Advisory
-
https://usn.ubuntu.com/4458-1/
USN-4458-1: Apache HTTP Server vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://www.oracle.com/security-alerts/cpujul2022.html
Oracle Critical Patch Update Advisory - July 2022
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