medium
6.1
CWE
601
Advisory Published
CVE Published
Updated

CVE-2020-1927

First published: Wed Apr 01 2020(Updated: )

A flaw was found in Apache HTTP Server (httpd) versions 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 redirected instead to an unexpected URL within the request URL.

Credit: security@apache.org security@apache.org

Affected SoftwareAffected VersionHow to fix
redhat/jbcs-httpd24-apr<0:1.6.3-86.jbcs.el6
0:1.6.3-86.jbcs.el6
redhat/jbcs-httpd24-brotli<0:1.0.6-21.jbcs.el6
0:1.0.6-21.jbcs.el6
redhat/jbcs-httpd24-httpd<0:2.4.37-52.jbcs.el6
0:2.4.37-52.jbcs.el6
redhat/jbcs-httpd24-openssl<1:1.1.1c-16.jbcs.el6
1:1.1.1c-16.jbcs.el6
redhat/jbcs-httpd24-apr<0:1.6.3-86.jbcs.el7
0:1.6.3-86.jbcs.el7
redhat/jbcs-httpd24-brotli<0:1.0.6-21.jbcs.el7
0:1.0.6-21.jbcs.el7
redhat/jbcs-httpd24-httpd<0:2.4.37-52.jbcs.el7
0:2.4.37-52.jbcs.el7
redhat/jbcs-httpd24-openssl<1:1.1.1c-16.jbcs.el7
1:1.1.1c-16.jbcs.el7
redhat/httpd<0:2.4.6-95.el7
0:2.4.6-95.el7
redhat/httpd24-httpd<0:2.4.34-18.el6
0:2.4.34-18.el6
redhat/httpd24-httpd<0:2.4.34-18.el7
0:2.4.34-18.el7
Apache HTTP server>=2.4.0<=2.4.41
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=20.04
openSUSE Leap=15.1
NetApp OnCommand Unified Manager Core Package
Broadcom Brocade Fabric Operating System
Oracle Communications Element Manager=8.1.1
Oracle Communications Element Manager=8.2.0
Oracle Communications Element Manager=8.2.1
Oracle Communications Session Report Manager=8.1.1
Oracle Communications Session Report Manager=8.2.0
Oracle Communications Session Report Manager=8.2.1
Oracle Communications Session Route Manager=8.1.1
Oracle Communications Session Route Manager=8.2.0
Oracle Communications Session Route Manager=8.2.1
Oracle Enterprise Manager Ops Center=12.4.0.0
Oracle Instantis Enterprisetrack>=17.1<=17.3
Oracle SD-WAN Aware=8.2
Oracle ZFS Storage Appliance Kit=8.8
redhat/httpd<2.4.42
2.4.42
debian/apache2
2.4.62-1~deb11u1
2.4.62-1~deb11u2
2.4.62-1~deb12u2
2.4.62-3

Remedy

https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf@%3Ccvs.httpd.apache.org%3E

Remedy

https://lists.apache.org/thread.html/r09bb998baee74a2c316446bd1a41ae7f8d7049d09d9ff991471e8775@%3Ccvs.httpd.apache.org%3E

Remedy

https://lists.apache.org/thread.html/r10b853ea87dd150b0e76fda3f8254dfdb23dd05fa55596405b58478e@%3Ccvs.httpd.apache.org%3E

Remedy

https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36@%3Ccvs.httpd.apache.org%3E

Remedy

https://lists.apache.org/thread.html/r6a4146bf3d1645af2880f8b7a4fd8afd696d5fd4a3ae272f49f5dc84@%3Ccvs.httpd.apache.org%3E

Remedy

https://lists.apache.org/thread.html/r70ba652b79ba224b2cbc0a183078b3a49df783b419903e3dcf4d78c7@%3Ccvs.httpd.apache.org%3E

Remedy

https://lists.apache.org/thread.html/r731d43caece41d78d8c6304641a02a369fd78300e7ffaf566b06bc59@%3Ccvs.httpd.apache.org%3E

Remedy

https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d@%3Ccvs.httpd.apache.org%3E

Remedy

https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E

Remedy

https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a@%3Ccvs.httpd.apache.org%3E

Remedy

https://lists.apache.org/thread.html/rdf3e5d0a5f5c3d90d6013bccc6c4d5af59cf1f8c8dea5d9a283d13ce@%3Ccvs.httpd.apache.org%3E

Remedy

https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E

Remedy

https://www.oracle.com/security-alerts/cpuApr2021.html

Remedy

https://www.oracle.com/security-alerts/cpujul2020.html

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2020-1927?

    CVE-2020-1927 is a vulnerability in Apache HTTP Server that allows for redirects configured with mod_rewrite to be fooled and redirected to unexpected URLs.

  • What is the severity of CVE-2020-1927?

    The severity of CVE-2020-1927 is medium with a CVSS score of 6.1.

  • How does CVE-2020-1927 affect Apache HTTP Server?

    CVE-2020-1927 affects Apache HTTP Server versions 2.4.0 to 2.4.41.

  • What is the remedy for CVE-2020-1927?

    The recommended remedy for CVE-2020-1927 is to update Apache HTTP Server to version 2.4.42 or apply the appropriate patch provided by the vendor.

  • Where can I find more information about CVE-2020-1927?

    You can find more information about CVE-2020-1927 on the official CVE website, NIST NVD website, and the Apache HTTP Server security vulnerabilities page.

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