// For flags

CVE-2019-0220

httpd: URL normalization inconsistency

Severity Score

5.3
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability was found in Apache HTTP Server 2.4.0 to 2.4.38. When the path component of a request URL contains multiple consecutive slashes ('/'), directives such as LocationMatch and RewriteRule must account for duplicates in regular expressions while other aspects of the servers processing will implicitly collapse them.

Se descubrió una vulnerabilidad en Apache HTTP Server 2.4.0 hasta 2.4.38. Cuando el componente del recorrido de la solicitud de la URL contiene múltiples barras diagonales consecutivas ('/'), como por ejemplo LocationMatch y RewriteRule debe tener en cuenta los duplicados en las expresiones regulares que otros aspectos del procesamiento de los servidores los colapsarán implícitamente.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-11-14 CVE Reserved
  • 2019-04-03 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-11-01 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-41: Improper Resolution of Path Equivalence
  • CWE-706: Use of Incorrectly-Resolved Name or Reference
CAPEC
References (42)
URL Tag Source
http://www.openwall.com/lists/oss-security/2019/04/02/6 Mailing List
http://www.securityfocus.com/bid/107670 Third Party Advisory
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r31f46d1f16ffcafa68058596b21f6eaf6d352290e522690a1cdccdd7%40%3Cbugs.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/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E Mailing List
https://lists.apache.org/thread.html/re473305a65b4db888e3556e4dae10c2a04ee89dcff2e26ecdbd860a9%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/2019/04/msg00008.html Mailing List
https://seclists.org/bugtraq/2019/Apr/5 Mailing List
https://security.netapp.com/advisory/ntap-20190625-0007 X_refsource_confirm
https://support.f5.com/csp/article/K44591505 Third Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03950en_us X_refsource_confirm
https://www.oracle.com/security-alerts/cpuapr2020.html X_refsource_misc
https://www.oracle.com/security-alerts/cpujul2020.html X_refsource_misc
https://www.oracle.com/security-alerts/cpujul2022.html X_refsource_misc
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html X_refsource_misc
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html X_refsource_misc
URL Date SRC
URL Date SRC
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.html 2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.html 2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.html 2023-11-07
URL Date SRC
https://access.redhat.com/errata/RHSA-2019:2343 2023-11-07
https://access.redhat.com/errata/RHSA-2019:3436 2023-11-07
https://access.redhat.com/errata/RHSA-2019:4126 2023-11-07
https://access.redhat.com/errata/RHSA-2020:0250 2023-11-07
https://access.redhat.com/errata/RHSA-2020:0251 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/ALIR5S3O7NRHEGFMIDMUSYQIZOE4TJJN 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZRMTEIGZKYFNGIDOTXN3GNEJTLVCYU7 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WETXNQWNQLWHV6XNW6YTO5UGDTIWAQGT 2023-11-07
https://usn.ubuntu.com/3937-1 2023-11-07
https://www.debian.org/security/2019/dsa-4422 2023-11-07
https://access.redhat.com/security/cve/CVE-2019-0220 2020-01-27
https://bugzilla.redhat.com/show_bug.cgi?id=1695036 2020-01-27
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 <= 2.4.38
Search vendor "Apache" for product "Http Server" and version " >= 2.4.0 <= 2.4.38"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 15.0
Search vendor "Opensuse" for product "Leap" and version "15.0"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 42.3
Search vendor "Opensuse" for product "Leap" and version "42.3"
-
Affected
Debian
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 Debian Linux
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 8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
Affected
Debian
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 Debian Linux
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 9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected
Fedoraproject
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 Fedora
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 28
Search vendor "Fedoraproject" for product "Fedora" and version "28"
-
Affected
Fedoraproject
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 Fedora
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 29
Search vendor "Fedoraproject" for product "Fedora" and version "29"
-
Affected
Fedoraproject
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 Fedora
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 30
Search vendor "Fedoraproject" for product "Fedora" and version "30"
-
Affected
Canonical
Search vendor "Canonical"
 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 14.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"
lts
Affected
Canonical
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 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 16.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"
lts
Affected
Canonical
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 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"
 18.10
Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10"
-
Affected