CVE-2020-1927

httpd: mod_rewrite configurations vulnerable to open redirect

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

En Apache HTTP Server versiones 2.4.0 hasta 2.4.41, los redireccionamientos configurados con mod_rewrite que pretendían ser autorreferenciales podrían ser engañados por nuevas líneas codificadas y redireccionadas en lugar de una URL inesperada dentro de la URL de petición.

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.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-02 CVE Reserved
2020-04-01 CVE Published
2024-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

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

CAPEC

References (29)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2020/04/03/1	Mailing List
http://www.openwall.com/lists/oss-security/2020/04/04/1	Mailing List
https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r09bb998baee74a2c316446bd1a41ae7f8d7049d09d9ff991471e8775%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r10b853ea87dd150b0e76fda3f8254dfdb23dd05fa55596405b58478e%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r1719675306dfbeaceff3dc63ccad3de2d5615919ca3c13276948b9ac%40%3Cdev.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r52a52fd60a258f5999a8fa5424b30d9fd795885f9ff4828d889cd201%40%3Cdev.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r6a4146bf3d1645af2880f8b7a4fd8afd696d5fd4a3ae272f49f5dc84%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r70ba652b79ba224b2cbc0a183078b3a49df783b419903e3dcf4d78c7%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r731d43caece41d78d8c6304641a02a369fd78300e7ffaf566b06bc59%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rdf3e5d0a5f5c3d90d6013bccc6c4d5af59cf1f8c8dea5d9a283d13ce%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E	Mailing List
https://lists.debian.org/debian-lts-announce/2021/07/msg00006.html	Mailing List
https://security.netapp.com/advisory/ntap-20200413-0002	Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html	X_refsource_misc

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpuApr2021.html	2023-11-07
https://www.oracle.com/security-alerts/cpujul2020.html	2023-11-07

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00002.html	2023-11-07
https://httpd.apache.org/security/vulnerabilities_24.html	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A2RN46PRBJE7E7OPD4YZX5SVWV5QKGV5	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HYVYE2ZERFXDV6RMKK3I5SDSDQLPSEIQ	2023-11-07
https://usn.ubuntu.com/4458-1	2023-11-07
https://www.debian.org/security/2020/dsa-4757	2023-11-07
https://access.redhat.com/security/cve/CVE-2020-1927	2020-11-04
https://bugzilla.redhat.com/show_bug.cgi?id=1820761	2020-11-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Http Server Search vendor "Apache" for product "Http Server"				>= 2.4.0 <= 2.4.41 Search vendor "Apache" for product "Http Server" and version " >= 2.4.0 <= 2.4.41"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				31 Search vendor "Fedoraproject" for product "Fedora" and version "31"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				32 Search vendor "Fedoraproject" for product "Fedora" and version "32"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				20.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "20.04"		lts		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected
Netapp Search vendor "Netapp"		Oncommand Unified Manager Core Package Search vendor "Netapp" for product "Oncommand Unified Manager Core Package"				-		-		Affected
Broadcom Search vendor "Broadcom"		Brocade Fabric Operating System Search vendor "Broadcom" for product "Brocade Fabric Operating System"				-		-		Affected
Oracle Search vendor "Oracle"		Communications Element Manager Search vendor "Oracle" for product "Communications Element Manager"				8.1.1 Search vendor "Oracle" for product "Communications Element Manager" and version "8.1.1"		-		Affected
Oracle Search vendor "Oracle"		Communications Element Manager Search vendor "Oracle" for product "Communications Element Manager"				8.2.0 Search vendor "Oracle" for product "Communications Element Manager" and version "8.2.0"		-		Affected
Oracle Search vendor "Oracle"		Communications Element Manager Search vendor "Oracle" for product "Communications Element Manager"				8.2.1 Search vendor "Oracle" for product "Communications Element Manager" and version "8.2.1"		-		Affected
Oracle Search vendor "Oracle"		Communications Session Report Manager Search vendor "Oracle" for product "Communications Session Report Manager"				8.1.1 Search vendor "Oracle" for product "Communications Session Report Manager" and version "8.1.1"		-		Affected
Oracle Search vendor "Oracle"		Communications Session Report Manager Search vendor "Oracle" for product "Communications Session Report Manager"				8.2.0 Search vendor "Oracle" for product "Communications Session Report Manager" and version "8.2.0"		-		Affected
Oracle Search vendor "Oracle"		Communications Session Report Manager Search vendor "Oracle" for product "Communications Session Report Manager"				8.2.1 Search vendor "Oracle" for product "Communications Session Report Manager" and version "8.2.1"		-		Affected
Oracle Search vendor "Oracle"		Communications Session Route Manager Search vendor "Oracle" for product "Communications Session Route Manager"				8.1.1 Search vendor "Oracle" for product "Communications Session Route Manager" and version "8.1.1"		-		Affected
Oracle Search vendor "Oracle"		Communications Session Route Manager Search vendor "Oracle" for product "Communications Session Route Manager"				8.2.0 Search vendor "Oracle" for product "Communications Session Route Manager" and version "8.2.0"		-		Affected
Oracle Search vendor "Oracle"		Communications Session Route Manager Search vendor "Oracle" for product "Communications Session Route Manager"				8.2.1 Search vendor "Oracle" for product "Communications Session Route Manager" and version "8.2.1"		-		Affected
Oracle Search vendor "Oracle"		Enterprise Manager Ops Center Search vendor "Oracle" for product "Enterprise Manager Ops Center"				12.4.0.0 Search vendor "Oracle" for product "Enterprise Manager Ops Center" and version "12.4.0.0"		-		Affected
Oracle Search vendor "Oracle"		Instantis Enterprisetrack Search vendor "Oracle" for product "Instantis Enterprisetrack"				>= 17.1 <= 17.3 Search vendor "Oracle" for product "Instantis Enterprisetrack" and version " >= 17.1 <= 17.3"		-		Affected
Oracle Search vendor "Oracle"		Sd-wan Aware Search vendor "Oracle" for product "Sd-wan Aware"				8.2 Search vendor "Oracle" for product "Sd-wan Aware" and version "8.2"		-		Affected
Oracle Search vendor "Oracle"		Zfs Storage Appliance Kit Search vendor "Oracle" for product "Zfs Storage Appliance Kit"				8.8 Search vendor "Oracle" for product "Zfs Storage Appliance Kit" and version "8.8"		-		Affected