CVE-2017-20157Network attack vector

SSRF via double-port URL parsing

Published Dec 31, 2022 · Updated Aug 5, 2024

Server-side request forgery in Ariadne Component Library before 3.0 allows remote attackers to send server-originated requests via malformed URLs. The Url::__construct method leaves extra colon and port text in a non-LDAP host after parse_url(), allowing a crafted URL to target a different internal service when reconstructed. No privileges or user interaction are required when an application passes attacker-controlled URLs to the library; reachable internal services can receive attacker-chosen requests.

CVSS severity9.8
Critical
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Ariadne Component Library before 3.0 allows remote attackers to send server-originated requests via malformed URLs. The Url::__construct method leaves extra colon and port text in a non-LDAP host after parse_url(), allowing a crafted URL to target a different internal service when reconstructed. No privileges or user interaction are required when an application passes attacker-controlled URLs to the library; reachable internal services can receive attacker-chosen requests.

The record

CVE
CVE-2017-20157
Published
Dec 31, 2022
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-918, T1090
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 31, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5VulDBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1090Proxy

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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