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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2021-42357

When using Apache Knox SSO prior to 1.6.1, a request could be crafted to redirect a user to a malicious page due to improper URL parsing. A request that included a specially crafted request parameter could be used to redirect the user to a page controlled by an attacker. This URL would need to be presented to the user outside the normal request flow through a XSS or phishing campaign.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2021-42357
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 07:40 UTC · Revision 1

Source evidence

CVE-2021-42357

core-osv · Original source

Published 17 Jan 2022, 20:15 UTC

When using Apache Knox SSO prior to 1.6.1, a request could be crafted to redirect a user to a malicious page due to improper URL parsing. A request that included a specially crafted request parameter could be used to redirect the user to a page controlled by an attacker. This URL would need to be presented to the user outside the normal request flow through a XSS or phishing campaign.

osv:CVE-2021-42357
Complete source record
{
  "id": "0b708e6dba1987df31b746ef40674e90db09a435ef5fd11593f1a4b71240b114",
  "url": "https://osv.dev/vulnerability/CVE-2021-42357",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-42357",
    "summary": "When using Apache Knox SSO prior to 1.6.1, a request could be crafted to redirect a user to a malicious page due to improper URL parsing. A request that included a specially crafted request parameter could be used to redirect the user to a page controlled by an attacker. This URL would need to be presented to the user outside the normal request flow through a XSS or phishing campaign.",
    "evidence": "osv:CVE-2021-42357",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-42357",
      "aliases": [
        "CVE-2021-42357",
        "GHSA-vv38-4xcj-q4rw"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/knox",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6060a757389b16f6fc8c6689503107d0c06a2f1d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:knox:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.6.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.6.0-release",
            "v1.6.0-RC4",
            "v1.6.0-RC3",
            "v1.6.0-RC2",
            "v1.6.0-RC1",
            "v1.5.0-branch",
            "v1.4.0-branch",
            "v1.3.0-branch",
            "v1.2.0-branch",
            "v1.1.0-branch",
            "v1.0.0-branch",
            "v0.13.0-branch",
            "v0.12.0-branch",
            "v0.11.0-branch",
            "v0.10.0-branch",
            "v0.9.0-branch",
            "v0.8.0-branch",
            "v0.7.0-branch",
            "v0.6.0-branch",
            "v0.5.0-branch",
            "v0.4.0-branch",
            "v0.3.0-branch",
            "v0.2.0-branch",
            "v0.2.0-rc2",
            "v0.2.0-rc1",
            "v0.1.0-m1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-42357.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:56.397712354Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread/b7v5dkpyqb51nw0lvz4cybhgrfhk1g7j"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-42357",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438665,
  "published_at": "2022-01-17T20:15:07.697+00:00"
}