CVE-2020-8284
LOWCVSS 3.7/10EPSS 3.85%
Last modified
CVE-2020-8284 is a low-severity vulnerability rated 3.7/10 on the CVSS scale. 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.. EPSS estimates a 3.85% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| 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 | All versions | — |
| Netapp | Hci Management Node | All versions | — |
| Netapp | Solidfire | All versions | — |
| Netapp | Hci Storage Node | All versions | — |
| Netapp | Hci Bootstrap Os | All versions | — |
| 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 | 10.15.7 | — |
| 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 | M10-4 Firmware | < xcp2410 | — |
| Fujitsu | M10-4s Firmware | < xcp2410 | — |
| Fujitsu | M12-1 Firmware | < xcp2410 | — |
| Fujitsu | M12-2 Firmware | < xcp2410 | — |
| Fujitsu | M12-2s Firmware | < xcp2410 | — |
| 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 | — |
| Splunk | Universal Forwarder | >= 8.2.0, < 8.2.12 | — |
| Splunk | Universal Forwarder | >= 9.0.0, < 9.0.6 | — |
| Splunk | Universal Forwarder | 9.1.0 | — |
References
- 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
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
- 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
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-8284?
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.
How severe is CVE-2020-8284?
CVE-2020-8284 has a CVSS score of 3.7/10 (LOW severity). The EPSS model estimates a 3.85% probability of exploitation in the next 30 days.
How do I fix CVE-2020-8284?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-8278Improper access control in Nextcloud Social app version 0.3.…5.3
- CVE-2020-8279Missing validation of server certificates for out-going conn…7.4
- CVE-2020-8280A missing file type check in Nextcloud Contacts 3.4.0 allows…5.4
- CVE-2020-8281A missing file type check in Nextcloud Contacts 3.3.0 allows…5.4
- CVE-2020-8282A security issue was found in EdgePower 24V/54V firmware v1.…8.8
- CVE-2020-8283An authorised user on a Windows host running Citrix Universa…8.8
- CVE-2020-8285curl 7.21.0 to and including 7.73.0 is vulnerable to uncontr…7.5
- CVE-2020-8286curl 7.41.0 through 7.73.0 is vulnerable to an improper chec…7.5
- CVE-2020-8287Node.js versions before 10.23.1, 12.20.1, 14.15.4, 15.5.1 al…6.5
- CVE-2020-8288The `specializedRendering` function in Rocket.Chat server be…5.4
- CVE-2020-8289Backblaze for Windows before 7.0.1.433 and Backblaze for mac…7.8
- CVE-2020-8290Backblaze for Windows and Backblaze for macOS before 7.0.0.4…7.8
Are you affected by CVE-2020-8284?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST