Vulnerability DatabaseCVE-2020-8284
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CVE-2020-8284
December 14, 2020
A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions.
Related Resources (23)
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
https://security.netapp.com/advisory/ntap-20210122-0007/
https://security.alpinelinux.org/vuln/CVE-2020-8284
https://curl.se/docs/CVE-2020-8284.html
https://support.apple.com/kb/HT212326
https://security.gentoo.org/glsa/202012-14
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAEHE2S2QLO4AO4MEEYL75NB7SAH5PSL/
https://www.oracle.com//security-alerts/cpujul2021.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NZUVSQHN2ESHMJXNQ2Z7T2EELBB5HJXG/
https://support.apple.com/kb/HT212327
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-8284
https://hackerone.com/reports/1040166
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DAEHE2S2QLO4AO4MEEYL75NB7SAH5PSL/
https://github.com/curl/curl/commit/ec9cc725d598ac
https://support.apple.com/kb/HT212325
https://www.oracle.com/security-alerts/cpujan2022.html
https://www.oracle.com/security-alerts/cpuapr2022.html
https://security-tracker.debian.org/tracker/CVE-2020-8284
https://lists.debian.org/debian-lts-announce/2020/12/msg00029.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NZUVSQHN2ESHMJXNQ2Z7T2EELBB5HJXG/
https://access.redhat.com/security/cve/CVE-2020-8284
https://www.debian.org/security/2021/dsa-4881
https://www.oracle.com/security-alerts/cpuApr2021.html
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CVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
CVSS v2
Base Score:
4.3
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Weakness Type (CWE)
Exposure of Sensitive Information to an Unauthorized Actor
CWE-200
EPSS
Base Score:
0.10