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CVE-2021-40438

CRITICALCISA KEV

9.0

Description

A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.

Details CVE

Score CVSS v3.19.0

SeveriteCRITICAL

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisNONE

Interaction utilisateurNONE

Publie9/16/2021

Derniere modification10/27/2025

Sourcekev

Observations honeypot0

CISA KEV

FournisseurApache

ProduitApache

Nom vulnerabiliteApache HTTP Server-Side Request Forgery (SSRF)

Date ajout KEV2021-12-01

Date limite remediation2021-12-15

Utilise dans ransomwareUnknown

Produits affectes

apache:http_serverbroadcom:brocade_fabric_operating_system_firmwaredebian:debian_linuxf5:f5osfedoraproject:fedoranetapp:cloud_backupnetapp:clustered_data_ontapnetapp:storagegridoracle:enterprise_manager_ops_centeroracle:http_serveroracle:instantis_enterprisetrackoracle:secure_global_desktoporacle:zfs_storage_appliance_kitredhat:enterprise_linuxredhat:enterprise_linux_eusredhat:enterprise_linux_for_arm_64redhat:enterprise_linux_for_arm_64_eusredhat:enterprise_linux_for_ibm_z_systemsredhat:enterprise_linux_for_ibm_z_systems_eusredhat:enterprise_linux_for_ibm_z_systems_eus_s390xredhat:enterprise_linux_for_power_big_endianredhat:enterprise_linux_for_power_little_endianredhat:enterprise_linux_for_power_little_endian_eusredhat:enterprise_linux_for_scientific_computingredhat:enterprise_linux_serverredhat:enterprise_linux_server_ausredhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsredhat:enterprise_linux_server_tusredhat:enterprise_linux_server_update_services_for_sap_solutionsredhat:enterprise_linux_server_workstationredhat:enterprise_linux_update_services_for_sap_solutionsredhat:enterprise_linux_workstationredhat:jboss_core_servicesredhat:software_collectionsresf:rocky_linuxsiemens:ruggedcom_nmssiemens:sinec_nmssiemens:sinema_remote_connect_serversiemens:sinema_servertenable:tenable.sc

Faiblesses (CWE)

CWE-918CWE-918

References

https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf(security@apache.org)

https://httpd.apache.org/security/vulnerabilities_24.html(security@apache.org)

https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.httpd.apache.org%3E(security@apache.org)

https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37%40%3Cbugs.httpd.apache.org%3E(security@apache.org)

https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E(security@apache.org)

https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E(security@apache.org)

https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E(security@apache.org)

https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E(security@apache.org)

https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00%40%3Cusers.httpd.apache.org%3E(security@apache.org)

https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html(security@apache.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/(security@apache.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/(security@apache.org)

https://security.gentoo.org/glsa/202208-20(security@apache.org)

https://security.netapp.com/advisory/ntap-20211008-0004/(security@apache.org)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ(security@apache.org)

https://www.debian.org/security/2021/dsa-4982(security@apache.org)

https://www.oracle.com/security-alerts/cpuapr2022.html(security@apache.org)

https://www.oracle.com/security-alerts/cpujan2022.html(security@apache.org)

https://www.tenable.com/security/tns-2021-17(security@apache.org)

https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf(af854a3a-2127-422b-91ae-364da2661108)

https://httpd.apache.org/security/vulnerabilities_24.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.httpd.apache.org%3E(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37%40%3Cbugs.httpd.apache.org%3E(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00%40%3Cusers.httpd.apache.org%3E(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202208-20(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20211008-0004/(af854a3a-2127-422b-91ae-364da2661108)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ(af854a3a-2127-422b-91ae-364da2661108)

https://www.debian.org/security/2021/dsa-4982(af854a3a-2127-422b-91ae-364da2661108)

https://www.oracle.com/security-alerts/cpuapr2022.html(af854a3a-2127-422b-91ae-364da2661108)

https://www.oracle.com/security-alerts/cpujan2022.html(af854a3a-2127-422b-91ae-364da2661108)

https://www.tenable.com/security/tns-2021-17(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40438(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

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