What’s Vulnerable › Vulnerabilities
CVE-2020-8177
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.3% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2020-12-14 · updated 2026-10-14
- Weakness: CWE-99
Description
curl 7.20.0 through 7.70.0 is vulnerable to improper restriction of names for files and other resources that can lead too overwriting a local file when the -J flag is used.
Affected products
- Debian Linux: 10.0
- Fujitsu M10-1 Firmware: before xcp2410; before xcp3110 — fixed in xcp2410, xcp3110
- Fujitsu M10-4 Firmware: before xcp2410; before xcp3110 — fixed in xcp2410, xcp3110
- Fujitsu M10-4S Firmware: before xcp2410; before xcp3110 — fixed in xcp2410, xcp3110
- Fujitsu M12-1 Firmware: before xcp2410; before xcp3110 — fixed in xcp2410, xcp3110
- Fujitsu M12-2 Firmware: before xcp2410; before xcp3110 — fixed in xcp2410, xcp3110
- Fujitsu M12-2S Firmware: before xcp2410; before xcp3110 — fixed in xcp2410, xcp3110
- curl: from 7.20.0 through 7.70.0
- Siemens Sinec Infrastructure Network Services: before 1.0.1.1 — fixed in 1.0.1.1
- Splunk Universal Forwarder: from 8.2.0 before 8.2.12; from 9.0.0 before 9.0.6; 9.1.0 — fixed in 8.2.12, 9.0.6
How to fix
Upgrade to a fixed version: Fujitsu M10-1 Firmware xcp2410, xcp3110; Fujitsu M10-4 Firmware xcp2410, xcp3110; Fujitsu M10-4S Firmware xcp2410, xcp3110; Fujitsu M12-1 Firmware xcp2410, xcp3110; Fujitsu M12-2 Firmware xcp2410, xcp3110; Fujitsu M12-2S Firmware xcp2410, xcp3110; Siemens Sinec Infrastructure Network Services 1.0.1.1; Splunk Universal Forwarder 8.2.12, 9.0.6. Check the vendor advisory for mitigations.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://curl.se/docs/CVE-2020-8177.html
- https://hackerone.com/reports/887462
- https://www.debian.org/security/2021/dsa-4881
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://curl.se/docs/CVE-2020-8177.html
- https://hackerone.com/reports/887462
- https://www.debian.org/security/2021/dsa-4881
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://cert-portal.siemens.com/productcert/html/ssa-389290.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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