CVE-2021-40438

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.
SSRF
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9 CRITICAL
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
apacheCNA
---
---
CVEADP
---
---
CISA-ADPADP
9 CRITICAL
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 99%
VendorProductVersion
resfrocky_linux
8.0
redhatjboss_core_services
1.0
redhatsoftware_collections
1.0
redhatenterprise_linux
8.0
redhatenterprise_linux_eus
8.1
redhatenterprise_linux_eus
8.2
redhatenterprise_linux_eus
8.4
redhatenterprise_linux_eus
8.6
redhatenterprise_linux_eus
8.8
redhatenterprise_linux_for_arm_64
8.0
redhatenterprise_linux_for_arm_64_eus
8.6
redhatenterprise_linux_for_arm_64_eus
8.8
redhatenterprise_linux_for_ibm_z_systems
7.0_s390x:_s390x
redhatenterprise_linux_for_ibm_z_systems
8.0
redhatenterprise_linux_for_ibm_z_systems_eus
8.1
redhatenterprise_linux_for_ibm_z_systems_eus
8.4
redhatenterprise_linux_for_ibm_z_systems_eus
8.8
redhatenterprise_linux_for_ibm_z_systems_eus_s390x
8.2
redhatenterprise_linux_for_power_big_endian
7.0
redhatenterprise_linux_for_power_little_endian
7.0
redhatenterprise_linux_for_power_little_endian
8.0
redhatenterprise_linux_for_power_little_endian_eus
8.1
redhatenterprise_linux_for_power_little_endian_eus
8.2
redhatenterprise_linux_for_power_little_endian_eus
8.4
redhatenterprise_linux_for_power_little_endian_eus
8.6
redhatenterprise_linux_for_power_little_endian_eus
8.8
redhatenterprise_linux_for_scientific_computing
7.0
redhatenterprise_linux_server
7.0
redhatenterprise_linux_server_aus
7.2
redhatenterprise_linux_server_aus
7.3
redhatenterprise_linux_server_aus
7.4
redhatenterprise_linux_server_aus
7.6
redhatenterprise_linux_server_aus
7.7
redhatenterprise_linux_server_aus
8.2
redhatenterprise_linux_server_aus
8.4
redhatenterprise_linux_server_aus
8.6
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
7.6
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
7.7
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
8.1
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
8.2
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
8.4
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
8.6
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
8.8
redhatenterprise_linux_server_tus
7.6
redhatenterprise_linux_server_tus
7.7
redhatenterprise_linux_server_tus
8.2
redhatenterprise_linux_server_tus
8.4
redhatenterprise_linux_server_tus
8.6
redhatenterprise_linux_server_tus
8.8
redhatenterprise_linux_server_update_services_for_sap_solutions
7.6
redhatenterprise_linux_server_update_services_for_sap_solutions
7.7
redhatenterprise_linux_update_services_for_sap_solutions
8.1
redhatenterprise_linux_update_services_for_sap_solutions
8.2
redhatenterprise_linux_update_services_for_sap_solutions
8.4
redhatenterprise_linux_update_services_for_sap_solutions
8.6
redhatenterprise_linux_update_services_for_sap_solutions
8.8
redhatenterprise_linux_workstation
7.0
apachehttp_server
𝑥
≤ 2.4.48
debiandebian_linux
9.0
debiandebian_linux
10.0
debiandebian_linux
11.0
netappcloud_backup
-
netappclustered_data_ontap
-
netappstoragegrid
-
broadcombrocade_fabric_operating_system_firmware
-
f5f5os
1.1.0 ≤
𝑥
≤ 1.1.4
f5f5os
1.2.0 ≤
𝑥
≤ 1.2.1
oracleenterprise_manager_ops_center
12.4.0.0
oraclehttp_server
12.2.1.3.0
oraclehttp_server
12.2.1.4.0
oracleinstantis_enterprisetrack
17.1
oracleinstantis_enterprisetrack
17.2
oracleinstantis_enterprisetrack
17.3
oraclesecure_global_desktop
5.6
oraclezfs_storage_appliance_kit
8.8
siemensruggedcom_nms
*
siemenssinec_nms
𝑥
< 1.0.3
siemenssinema_remote_connect_server
𝑥
< 3.1
siemenssinema_remote_connect_server
3.2
siemenssinema_server
14.0
tenabletenable.sc
𝑥
≤ 5.19.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
apache2
bullseye
2.4.62-1~deb11u1
fixed
bullseye (security)
2.4.62-1~deb11u2
fixed
bookworm
2.4.62-1~deb12u1
fixed
bookworm (security)
2.4.62-1~deb12u2
fixed
sid
2.4.62-3
fixed
trixie
2.4.62-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
apache2
jammy
Fixed 2.4.48-3.1ubuntu2
released
impish
Fixed 2.4.48-3.1ubuntu2
released
hirsute
Fixed 2.4.46-4ubuntu1.3
released
focal
Fixed 2.4.41-4ubuntu3.6
released
bionic
Fixed 2.4.29-1ubuntu4.18
released
xenial
Fixed 2.4.18-2ubuntu3.17+esm3
released
trusty
not-affected
References