medium
6.5
CWE
200
Advisory 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
IBM Cloud Pak for Security (CP4S)<=1.7.2.0
IBM Cloud Pak for Security (CP4S)<=1.7.1.0
IBM Cloud Pak for Security (CP4S)<=1.7.0.0
Apple Mojave
Apple Catalina
Haxx Curl<=7.73.0
Fedoraproject Fedora=32
Fedoraproject Fedora=33
Debian Debian Linux=9.0
Debian Debian Linux=10.0
NetApp Clustered Data ONTAP
Netapp Hci Management Node
Netapp Solidfire
Netapp Hci Storage Node
Netapp Hci Bootstrap Os
Netapp Hci Compute Node
Apple Mac OS X>=10.14.0<10.14.6
Apple Mac OS X>=10.15<10.15.7
Apple Mac OS X=10.14.6-security_update_2019-001
Apple Mac OS X=10.14.6-security_update_2019-002
Apple Mac OS X=10.14.6-security_update_2019-004
Apple Mac OS X=10.14.6-security_update_2019-005
Apple Mac OS X=10.14.6-security_update_2019-006
Apple Mac OS X=10.14.6-security_update_2019-007
Apple Mac OS X=10.14.6-security_update_2020-001
Apple Mac OS X=10.14.6-security_update_2020-002
Apple Mac OS X=10.14.6-security_update_2020-003
Apple Mac OS X=10.14.6-security_update_2020-004
Apple Mac OS X=10.14.6-security_update_2020-005
Apple Mac OS X=10.14.6-security_update_2020-006
Apple Mac OS X=10.14.6-security_update_2020-007
Apple Mac OS X=10.14.6-security_update_2021-001
Apple Mac OS X=10.14.6-security_update_2021-002
Apple Mac OS X=10.14.6-supplemental_update
Apple Mac OS X=10.14.6-supplemental_update_2
Apple Mac OS X=10.15.7
Apple Mac OS X=10.15.7-security_update_2020
Apple Mac OS X=10.15.7-security_update_2020-001
Apple Mac OS X=10.15.7-security_update_2020-005
Apple Mac OS X=10.15.7-security_update_2020-007
Apple Mac OS X=10.15.7-security_update_2021-001
Apple Mac OS X=10.15.7-supplemental_update
Apple macOS=11.0.1
Apple macOS=11.1
Apple macOS=11.2
Oracle Communications Billing and Revenue Management=12.0.0.3.0
Oracle Communications Cloud Native Core Policy=1.14.0
Oracle Essbase=21.2
Oracle PeopleSoft Enterprise PeopleTools=8.58
Fujitsu M10-1 Firmware<xcp2410
Fujitsu M10-1
Fujitsu M10-4 Firmware<xcp2410
Fujitsu M10-4
Fujitsu M10-4s Firmware<xcp2410
Fujitsu M10-4s
Fujitsu M12-1 Firmware<xcp2410
Fujitsu M12-1
Fujitsu M12-2 Firmware<xcp2410
Fujitsu M12-2
Fujitsu M12-2s Firmware<xcp2410
Fujitsu M12-2s
Fujitsu M10-1 Firmware<xcp3110
Fujitsu M10-4 Firmware<xcp3110
Fujitsu M10-4s Firmware<xcp3110
Fujitsu M12-1 Firmware<xcp3110
Fujitsu M12-2 Firmware<xcp3110
Fujitsu M12-2s Firmware<xcp3110
Siemens Sinec Infrastructure Network Services<1.0.1.1
Apple macOS Big Sur<11.3
11.3
redhat/curl<7.74.0
7.74.0
All of
Netapp Hci Bootstrap Os
Netapp Hci Compute Node
All of
Fujitsu M10-1 Firmware<xcp2410
Fujitsu M10-1
All of
Fujitsu M10-4 Firmware<xcp2410
Fujitsu M10-4
All of
Fujitsu M10-4s Firmware<xcp2410
Fujitsu M10-4s
All of
Fujitsu M12-1 Firmware<xcp2410
Fujitsu M12-1
All of
Fujitsu M12-2 Firmware<xcp2410
Fujitsu M12-2
All of
Fujitsu M12-2s Firmware<xcp2410
Fujitsu M12-2s
All of
Fujitsu M10-1 Firmware<xcp3110
Fujitsu M10-1
All of
Fujitsu M10-4 Firmware<xcp3110
Fujitsu M10-4
All of
Fujitsu M10-4s Firmware<xcp3110
Fujitsu M10-4s
All of
Fujitsu M12-1 Firmware<xcp3110
Fujitsu M12-1
All of
Fujitsu M12-2 Firmware<xcp3110
Fujitsu M12-2
All of
Fujitsu M12-2s Firmware<xcp3110
Fujitsu M12-2s
Splunk Universal Forwarder>=8.2.0<8.2.12
Splunk Universal Forwarder>=9.0.0<9.0.6
Splunk Universal Forwarder=9.1.0

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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