CVE-2017-8817

Curl vulnerability

CVSS

9.8

EPSS

11.2%

EPSS pct

95th

Exploited

No known

The FTP wildcard function in curl and libcurl before 7.57.0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) or possibly have unspecified other impact via a string that ends with an '[' character.

Affected vendor

Haxx

Affected product

Curl

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness type (CWE)

CWE-125 — Out-of-bounds Read

Published

2017-11-29

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 11.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2017-8817

Confirm whether Haxx Curl is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-8817.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-8817

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-8817 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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