medium
6.5
CWE
200
Advisory Published
CVE Published
CVE Published
Updated

CVE-2020-8284: Infoleak

First published: Mon Nov 30 2020(Updated: )

curl. This issue was addressed with improved checks.

Credit: Marian Rehak Marian Rehak support@hackerone.com Marian Rehak support@hackerone.com

Affected SoftwareAffected VersionHow to fix
redhat/jbcs-httpd24<0:1-18.el8
0:1-18.el8
redhat/jbcs-httpd24-apr<0:1.6.3-105.el8
0:1.6.3-105.el8
redhat/jbcs-httpd24-apr-util<0:1.6.1-82.el8
0:1.6.1-82.el8
redhat/jbcs-httpd24-brotli<0:1.0.6-40.el8
0:1.0.6-40.el8
redhat/jbcs-httpd24-curl<0:7.77.0-2.el8
0:7.77.0-2.el8
redhat/jbcs-httpd24-httpd<0:2.4.37-74.el8
0:2.4.37-74.el8
redhat/jbcs-httpd24-jansson<0:2.11-55.el8
0:2.11-55.el8
redhat/jbcs-httpd24-nghttp2<0:1.39.2-37.el8
0:1.39.2-37.el8
redhat/jbcs-httpd24-openssl<1:1.1.1g-6.el8
1:1.1.1g-6.el8
redhat/jbcs-httpd24-openssl-chil<0:1.0.0-5.el8
0:1.0.0-5.el8
redhat/jbcs-httpd24-openssl-pkcs11<0:0.4.10-20.el8
0:0.4.10-20.el8
redhat/jbcs-httpd24<0:1-18.jbcs.el7
0:1-18.jbcs.el7
redhat/jbcs-httpd24-apr<0:1.6.3-105.jbcs.el7
0:1.6.3-105.jbcs.el7
redhat/jbcs-httpd24-apr-util<0:1.6.1-82.jbcs.el7
0:1.6.1-82.jbcs.el7
redhat/jbcs-httpd24-curl<0:7.77.0-2.jbcs.el7
0:7.77.0-2.jbcs.el7
redhat/jbcs-httpd24-httpd<0:2.4.37-74.jbcs.el7
0:2.4.37-74.jbcs.el7
redhat/jbcs-httpd24-jansson<0:2.11-55.jbcs.el7
0:2.11-55.jbcs.el7
redhat/curl<0:7.61.1-18.el8
0:7.61.1-18.el8
debian/curl
7.64.0-4+deb10u2
7.64.0-4+deb10u7
7.74.0-1.3+deb11u9
7.74.0-1.3+deb11u10
7.88.1-10+deb12u3
7.88.1-10+deb12u4
8.4.0-2
debian/curl<=7.72.0-1<=7.64.0-4+deb10u1<=7.64.0-4
redhat/curl<7.74.0
7.74.0
Apple macOS<11.3
11.3
macOS Catalina
macOS Mojave
IBM Cloud Pak for Security<=1.7.2.0
IBM Cloud Pak for Security<=1.7.1.0
IBM Cloud Pak for Security<=1.7.0.0
Curl<=7.73.0
Fedora=32
Fedora=33
Debian=9.0
Debian=10.0
IBM Data ONTAP
NetApp SolidFire & HCI Management Node
NetApp SolidFire & HCI Storage Node
NetApp SolidFire & HCI Storage Node
All of
NetApp Bootstrap OS
NetApp HCI Compute Node
Apple iOS and macOS>=10.14.0<10.14.6
Apple iOS and macOS>=10.15<10.15.7
Apple iOS and macOS=10.14.6-security_update_2019-001
Apple iOS and macOS=10.14.6-security_update_2019-002
Apple iOS and macOS=10.14.6-security_update_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2020-004
Apple iOS and macOS=10.14.6-security_update_2020-005
Apple iOS and macOS=10.14.6-security_update_2020-006
Apple iOS and macOS=10.14.6-security_update_2020-007
Apple iOS and macOS=10.14.6-security_update_2021-001
Apple iOS and macOS=10.14.6-security_update_2021-002
Apple iOS and macOS=10.14.6-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-security_update_2020
Apple iOS and macOS=10.15.7-security_update_2020-001
Apple iOS and macOS=10.15.7-security_update_2020-005
Apple iOS and macOS=10.15.7-security_update_2020-007
Apple iOS and macOS=10.15.7-security_update_2021-001
Apple iOS and macOS=10.15.7-supplemental_update
Apple iOS and macOS=11.0.1
Apple iOS and macOS=11.1
Apple iOS and macOS=11.2
Oracle Communications Billing and Revenue Management=12.0.0.3.0
Oracle Communications Cloud Native Core Policy=1.14.0
Oracle Hyperion Essbase=21.2
Oracle Peoplesoft Enterprise Campus Software Campus Community=8.58
All of
Oracle Fujitsu M10-1 Firmware<xcp2410
Oracle Fujitsu M10-1
All of
Oracle Fujitsu M10-4 Firmware<xcp2410
Oracle Fujitsu M10-4
All of
Oracle Fujitsu M10-4S Firmware<xcp2410
Fujitsu M10-4S
All of
Oracle Fujitsu M12-1 Firmware<xcp2410
Oracle Fujitsu M12-1 Firmware
All of
Oracle Fujitsu M12-2 Firmware<xcp2410
Fujitsu SPARC M12-2
All of
Fujitsu SPARC M12-2S<xcp2410
Fujitsu SPARC M12-2S
All of
Oracle Fujitsu M10-1 Firmware<xcp3110
Oracle Fujitsu M10-1
All of
Oracle Fujitsu M10-4 Firmware<xcp3110
Oracle Fujitsu M10-4
All of
Oracle Fujitsu M10-4S Firmware<xcp3110
Fujitsu M10-4S
All of
Oracle Fujitsu M12-1 Firmware<xcp3110
Oracle Fujitsu M12-1 Firmware
All of
Oracle Fujitsu M12-2 Firmware<xcp3110
Fujitsu SPARC M12-2
All of
Fujitsu SPARC M12-2S<xcp3110
Fujitsu SPARC M12-2S
Siemens SINEC Infrastructure Network Services<1.0.1.1
Splunk Universal Forwarder>=8.2.0<8.2.12
Splunk Universal Forwarder>=9.0.0<9.0.6
Splunk Universal Forwarder=9.1.0
NetApp Bootstrap OS
NetApp HCI Compute Node
Oracle Fujitsu M10-1 Firmware<xcp2410
Oracle Fujitsu M10-1
Oracle Fujitsu M10-4 Firmware<xcp2410
Oracle Fujitsu M10-4
Oracle Fujitsu M10-4S Firmware<xcp2410
Fujitsu M10-4S
Oracle Fujitsu M12-1 Firmware<xcp2410
Oracle Fujitsu M12-1 Firmware
Oracle Fujitsu M12-2 Firmware<xcp2410
Fujitsu SPARC M12-2
Fujitsu SPARC M12-2S<xcp2410
Fujitsu SPARC M12-2S
Oracle Fujitsu M10-1 Firmware<xcp3110
Oracle Fujitsu M10-4 Firmware<xcp3110
Oracle Fujitsu M10-4S Firmware<xcp3110
Oracle Fujitsu M12-1 Firmware<xcp3110
Oracle Fujitsu M12-2 Firmware<xcp3110
Fujitsu SPARC M12-2S<xcp3110

Remedy

https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf

Remedy

https://www.oracle.com//security-alerts/cpujul2021.html

Remedy

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

Remedy

https://www.oracle.com/security-alerts/cpuapr2022.html

Remedy

https://www.oracle.com/security-alerts/cpujan2022.html

Remedy

This flaw can be mitigated in curl as shipped with Red Hat Enterprise Linux and Red Hat Software Collections when using curl by passing the `--ftp-skip-pasv-ip` command line option to curl. For usage of libcurl, set `CURLOPT_FTP_SKIP_PASV_IP` to `1L`[1]. Note that these mitigations could cause problems in the uncommon instance that the server needs the client to connect back to an IP other than the control connection IP address. 1. https://curl.se/libcurl/c/CURLOPT_FTP_SKIP_PASV_IP.html

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2020-8284?

    CVE-2020-8284 is a vulnerability that allows a malicious server to trick curl into connecting back to a given IP address and port, potentially extracting information about private services and performing port scanning.

  • What is the severity of CVE-2020-8284?

    The severity of CVE-2020-8284 is medium with a CVSS score of 3.1.

  • Which software versions are affected by CVE-2020-8284?

    The Red Hat curl package version up to exclusive 7.74.0, and other related packages like jbcs-httpd24, jbcs-httpd24-apr, jbcs-httpd24-apr-util, jbcs-httpd24-brotli, jbcs-httpd24-curl, jbcs-httpd24-httpd, jbcs-httpd24-jansson, jbcs-httpd24-nghttp2, jbcs-httpd24-openssl, jbcs-httpd24-openssl-chil, jbcs-httpd24-openssl-pkcs11, curl version up to exclusive 7.61.1-18.el8, Apple Catalina, Apple Mojave, and Apple macOS Big Sur versions up to exclusive 11.3 are affected by CVE-2020-8284.

  • How can I fix CVE-2020-8284?

    To fix CVE-2020-8284, update the affected software to the recommended versions: curl version 7.74.0 or later, or apply the necessary security updates provided by the software vendor.

  • Where can I find more information about CVE-2020-8284?

    You can find more information about CVE-2020-8284 on the following references: [link 1](https://support.apple.com/en-us/HT212326), [link 2](https://support.apple.com/en-us/HT212327), [link 3](https://support.apple.com/en-us/HT212325).

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