GHSA-v858-922f-fj9v: Simplesamlphp/simplesamlphp SimpleSAMLphp Link Injection Vulnerability Vulnerability

MODERATE
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CVSS 5.4
CWE-74
Published
Advisory Summary

GHSA-v858-922f-fj9v is a MODERATE (CVSS 5.4) simplesamlphp link injection vulnerability vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')) affecting Simplesamlphp/simplesamlphp libraries in the Packagist ecosystem. The issue involves simplesamlphp link injection vulnerability. Remediation is available by upgrading affected packages to version 1.14.4.

GHSA-v858-922f-fj9v at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-v858-922f-fj9v
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Affected Product Simplesamlphp/simplesamlphp
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix GHSA-v858-922f-fj9v

To remediate this vulnerability, upgrade all affected Simplesamlphp/simplesamlphp dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

simplesamlphp/simplesamlphp fixed: 1.14.4 
Upgrade simplesamlphp/simplesamlphp to 1.14.4
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for simplesamlphp/simplesamlphp

How to Check if You Are Affected

To determine whether your application is affected by GHSA-v858-922f-fj9v, inspect your project dependencies for Simplesamlphp/simplesamlphp:

inspect dependencies for simplesamlphp/simplesamlphp

Analyze the terminal output to locate any version of Simplesamlphp/simplesamlphp in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.14.4), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'), where the product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. In Simplesamlphp/simplesamlphp, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Background Several scripts part of SimpleSAMLphp display a web page with links obtained from the request parameters. This allows us to enhance usability, as the users are presented with links they can follow after completing a certain action, like logging out. ### Description The following scripts were not checking the URLs obtained via the HTTP request before displaying them as the target of links that the user may click on: - www/logout.php - modules/core/www/no_cookie.php The issue allowed attackers to display links targeting a malicious website inside a trusted site running SimpleSAMLphp, due to the lack of security checks involving the link_href and retryURL HTTP parameters, respectively. The issue was resolved by including a verification of the URLs received in the request against a white list of websites specified in the trusted.url.domains configuration option. ### Affected versions All SimpleSAMLphp versions prior to 1.14.4. ### Impact A remote attacker could craft a link pointing to a trusted website running SimpleSAMLphp, including a parameter pointing to a malicious website, and try to fool the victim into visiting that website by clicking on a link in the page presented by SimpleSAMLphp.

GHSA-v858-922f-fj9v Affected Simplesamlphp/simplesamlphp Versions

1 component(s)
Fixed Versions:
1.14.4
Product / Package Ecosystem Affected Versions Fixed Version
simplesamlphp/simplesamlphp
 Packagist
< 1.14.4
1.14.4

References

Security Fix Commit FIX COMMIT
https://github.com/simplesamlphp/simplesamlphp/commit/b1af4e47c81bca2bee633b3f84f4fde624f359ba
Security Fix Commit FIX COMMIT
https://github.com/simplesamlphp/simplesamlphp/commit/d26eb8f17dc9916a5ef2fd0a286b0fc96a561e71
Simplesamlphp/simplesamlphp Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/201606-01.yaml
Simplesamlphp/simplesamlphp Source Repository REPOSITORY
https://github.com/simplesamlphp/simplesamlphp
Simplesamlphp/simplesamlphp Security Information SECURITY
https://simplesamlphp.org/security/201606-01

Frequently Asked Questions

What is GHSA-v858-922f-fj9v?
GHSA-v858-922f-fj9v is a security vulnerability in Simplesamlphp/simplesamlphp involving SimpleSAMLphp Link Injection vulnerability under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection').
Which Simplesamlphp/simplesamlphp versions are affected?
Affected versions include releases prior to 1.14.4 across affected packages: simplesamlphp/simplesamlphp.
What version fixes GHSA-v858-922f-fj9v?
Upgrading to 1.14.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is simplesamlphp/simplesamlphp affected?
Yes, simplesamlphp/simplesamlphp is affected in releases prior to 1.14.4. Upgrade your dependency to 1.14.4 or later.
What is the CVSS score of GHSA-v858-922f-fj9v?
GHSA-v858-922f-fj9v has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.
What CWE is associated with GHSA-v858-922f-fj9v?
GHSA-v858-922f-fj9v is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.).
How can I check Packagist dependencies for GHSA-v858-922f-fj9v?
Run the dependency tree command: 'inspect dependencies for simplesamlphp/simplesamlphp'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-v858-922f-fj9v",
  "modified" : "2024-05-28T18:26:35Z",
  "published" : "2024-05-28T18:26:35Z",
  "aliases" : [ ],
  "summary" : "SimpleSAMLphp Link Injection vulnerability",
  "details" : "### Background\nSeveral scripts part of SimpleSAMLphp display a web page with links obtained from the request parameters. This allows us to enhance usability, as the users are presented with links they can follow after completing a certain action, like logging out.\n\n### Description\nThe following scripts were not checking the URLs obtained via the HTTP request before displaying them as the target of links that the user may click on:\n\n- www/logout.php\n- modules/core/www/no_cookie.php\nThe issue allowed attackers to display links targeting a malicious website inside a trusted site running SimpleSAMLphp, due to the lack of security checks involving the link_href and retryURL HTTP parameters, respectively. The issue was resolved by including a verification of the URLs received in the request against a white list of websites specified in the trusted.url.domains configuration option.\n\n### Affected versions\nAll SimpleSAMLphp versions prior to 1.14.4.\n\n### Impact\nA remote attacker could craft a link pointing to a trusted website running SimpleSAMLphp, including a parameter pointing to a malicious website, and try to fool the victim into visiting that website by clicking on a link in the page presented by SimpleSAMLphp.\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "simplesamlphp/simplesamlphp"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.14.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/simplesamlphp/simplesamlphp/commit/b1af4e47c81bca2bee633b3f84f4fde624f359ba"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/simplesamlphp/simplesamlphp/commit/d26eb8f17dc9916a5ef2fd0a286b0fc96a561e71"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/201606-01.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/simplesamlphp/simplesamlphp"
  }, {
    "type" : "WEB",
    "url" : "https://simplesamlphp.org/security/201606-01"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-74" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-28T18:26:35Z",
    "nvd_published_at" : null
  }
}