HOMEVULNERABILITIESCVE-2020-8284
LOW

CVE-2020-8284

CWE-200Published: December 14, 2020· Updated: Jun 17, 2026

3.7
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2020-8284 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

Apple2 product(s)
mac os xmacos
Debian1 product(s)
debian linux
Fedora1 product(s)
fedora
fujitsu12 product(s)
m10-1 firmwarem10-1m10-4 firmwarem10-4m10-4s firmwarem10-4sm12-1 firmwarem12-1m12-2 firmwarem12-2m12-2s firmwarem12-2s
haxx1 product(s)
curl
netapp6 product(s)
clustered data ontaphci management nodesolidfirehci storage nodehci bootstrap oshci compute node
Oracle4 product(s)
communications billing and revenue managementcommunications cloud native core policyessbasepeoplesoft enterprise peopletools
siemens1 product(s)
sinec infrastructure network services
splunk1 product(s)
universal forwarder
Source: NVD CPE · 36 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
PATCHhttps://www.oracle.com//security-alerts/cpujul2021.html
PATCHhttps://www.oracle.com/security-alerts/cpuApr2021.html
PATCHhttps://www.oracle.com/security-alerts/cpuapr2022.html
PATCHhttps://www.oracle.com/security-alerts/cpujan2022.html
PATCHhttps://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
PATCHhttps://www.oracle.com//security-alerts/cpujul2021.html
PATCHhttps://www.oracle.com/security-alerts/cpuApr2021.html
PATCHhttps://www.oracle.com/security-alerts/cpuapr2022.html
PATCHhttps://www.oracle.com/security-alerts/cpujan2022.html
ADVISORYhttps://curl.se/docs/CVE-2020-8284.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2020/12/msg00029.html
ADVISORYhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DAEHE2S2QLO4AO4MEEYL75NB7SAH5PSL/
ADVISORYhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NZUVSQHN2ESHMJXNQ2Z7T2EELBB5HJXG/
ADVISORYhttps://security.gentoo.org/glsa/202012-14
ADVISORYhttps://security.netapp.com/advisory/ntap-20210122-0007/
ADVISORYhttps://support.apple.com/kb/HT212325
ADVISORYhttps://support.apple.com/kb/HT212326
ADVISORYhttps://support.apple.com/kb/HT212327
ADVISORYhttps://www.debian.org/security/2021/dsa-4881
ADVISORYhttps://curl.se/docs/CVE-2020-8284.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2020/12/msg00029.html
ADVISORYhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DAEHE2S2QLO4AO4MEEYL75NB7SAH5PSL/
ADVISORYhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NZUVSQHN2ESHMJXNQ2Z7T2EELBB5HJXG/
ADVISORYhttps://security.gentoo.org/glsa/202012-14
ADVISORYhttps://security.netapp.com/advisory/ntap-20210122-0007/
ADVISORYhttps://support.apple.com/kb/HT212325
ADVISORYhttps://support.apple.com/kb/HT212326
ADVISORYhttps://support.apple.com/kb/HT212327
ADVISORYhttps://www.debian.org/security/2021/dsa-4881

All References (32)

→
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch · Third Party Advisory
→
https://curl.se/docs/CVE-2020-8284.htmlVendor Advisory
→
https://hackerone.com/reports/1040166Permissions Required
→
https://lists.debian.org/debian-lts-announce/2020/12/msg00029.htmlMailing List · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DAEHE2S2QLO4AO4MEEYL75NB7SAH5PSL/Mailing List · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NZUVSQHN2ESHMJXNQ2Z7T2EELBB5HJXG/Mailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/202012-14Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20210122-0007/Third Party Advisory
→
https://support.apple.com/kb/HT212325Third Party Advisory
→
https://support.apple.com/kb/HT212326Third Party Advisory
→
https://support.apple.com/kb/HT212327Third Party Advisory
→
https://www.debian.org/security/2021/dsa-4881Third Party Advisory
→
https://www.oracle.com//security-alerts/cpujul2021.htmlPatch · Third Party Advisory
→
https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch · Third Party Advisory
→
https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch · Third Party Advisory

Quick Facts

CVE IDCVE-2020-8284
CVSS Score3.7 / 10
SeverityLOW
WeaknessCWE-200
CISA KEVNo
Affected9 vendor(s)
PublishedDec 14, 2020

Related CVEs (CWE-200)

CVE-2008-0082
10.0
CVE-2008-3010
10.0
CVE-2008-1252
10.0
CVE-2008-1155
10.0
CVE-2008-3914
10.0
CVE-2010-1230
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-8284 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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