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CVE-2017-20164

CVE-2017-20164: Symbiote Seed Open Redirect vulnerability

6.1

CVSS Score
3.1

Basic Information

CVE ID
CVE-2017-20164
GHSA ID
GHSA-wm32-3r4m-jvcc
EPSS Score
0.13914%
CWE
CWE-601
Published
1/7/2023
Updated
10/20/2023
KEV Status
No
Technology
TechnologyPHP

Technical Details

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Package NameEcosystemVulnerable VersionsFirst Patched Version
symbiote/silverstripe-seedcomposer< 6.0.36.0.3

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability stems from the onBeforeSecurityLogin function in SecurityLoginExtension.php. The commit diff explicitly shows the addition of Director::is_site_url($URL) to validate the BackURL parameter, confirming the lack of this check was the root cause. The CVE description and advisory both directly reference this function and its manipulation of the URL argument as the exploit vector. No other functions are implicated in the provided technical details.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

* vuln*r**ility w*s *oun* in Sym*iot* S*** up to *.*.*. It **s ***n *l*ssi*i** *s *riti**l. *****t** is t** *un*tion `on***or*S**urityLo*in` o* t** *il* `*o**/*xt*nsions/S**urityLo*in*xt*nsion.p*p` o* t** *ompon*nt `Lo*in`. T** m*nipul*tion o* t** *r

Reasoning

T** vuln*r**ility st*ms *rom t** on***or*S**urityLo*in *un*tion in S**urityLo*in*xt*nsion.p*p. T** *ommit *i** *xpli*itly s*ows t** ***ition o* *ir**tor::is_sit*_url($URL) to v*li**t* t** ***kURL p*r*m*t*r, *on*irmin* t** l**k o* t*is ****k w*s t** r