CVE-2023-36456 (GCVE-0-2023-36456)

Vulnerability from cvelistv5 – Published: 2023-07-06 18:24 – Updated: 2024-11-14 14:10
VLAI?
Summary
authentik is an open-source Identity Provider. Prior to versions 2023.4.3 and 2023.5.5, authentik does not verify the source of the X-Forwarded-For and X-Real-IP headers, both in the Python code and the go code. Only authentik setups that are directly accessible by users without a reverse proxy are susceptible to this. Possible spoofing of IP addresses in logs, downstream applications proxied by (built in) outpost, IP bypassing in custom flows if used. This poses a possible security risk when someone has flows or policies that check the user's IP address, e.g. when they want to ignore the user's 2 factor authentication when the user is connected to the company network. A second security risk is that the IP addresses in the logfiles and user sessions are not reliable anymore. Anybody can spoof this address and one cannot verify that the user has logged in from the IP address that is in their account's log. A third risk is that this header is passed on to the proxied application behind an outpost. The application may do any kind of verification, logging, blocking or rate limiting based on the IP address, and this IP address can be overridden by anybody that want to. Versions 2023.4.3 and 2023.5.5 contain a patch for this issue.
Severity ?
8.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
CWE
  • CWE-436 - Interpretation Conflict
Assigner
References
Impacted products
Vendor Product Version
goauthentik authentik Affected: < 2023.4.3
Affected: >= 2023.5.0, < 2023.5.5
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T16:45:56.967Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/goauthentik/authentik/security/advisories/GHSA-cmxp-jcw7-jjjv",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/goauthentik/authentik/security/advisories/GHSA-cmxp-jcw7-jjjv"
          },
          {
            "name": "https://github.com/goauthentik/authentik/commit/15026748d19d490eb2baf9a9566ead4f805f7dff",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/goauthentik/authentik/commit/15026748d19d490eb2baf9a9566ead4f805f7dff"
          },
          {
            "name": "https://github.com/goauthentik/authentik/commit/c07a48a3eccbd7b23026f72136d3392bbc6f795a",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/goauthentik/authentik/commit/c07a48a3eccbd7b23026f72136d3392bbc6f795a"
          },
          {
            "name": "https://goauthentik.io/docs/releases/2023.4#fixed-in-202343",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://goauthentik.io/docs/releases/2023.4#fixed-in-202343"
          },
          {
            "name": "https://goauthentik.io/docs/releases/2023.5#fixed-in-202355",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://goauthentik.io/docs/releases/2023.5#fixed-in-202355"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-36456",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-14T14:10:24.618779Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-14T14:10:35.658Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "authentik",
          "vendor": "goauthentik",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2023.4.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 2023.5.0, \u003c 2023.5.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "authentik is an open-source Identity Provider. Prior to versions 2023.4.3 and 2023.5.5, authentik does not verify the source of the X-Forwarded-For and X-Real-IP headers, both in the Python code and the go code. Only authentik setups that are directly accessible by users without a reverse proxy are susceptible to this. Possible spoofing of IP addresses in logs, downstream applications proxied by (built in) outpost, IP bypassing in custom flows if used.\n\nThis poses a possible security risk when someone has flows or policies that check the user\u0027s IP address, e.g. when they want to ignore the user\u0027s 2 factor authentication when the user is connected to the company network. A second security risk is that the IP addresses in the logfiles and user sessions are not reliable anymore. Anybody can spoof this address and one cannot verify that the user has logged in from the IP address that is in their account\u0027s log. A third risk is that this header is passed on to the proxied application behind an outpost. The application may do any kind of verification, logging, blocking or rate limiting based on the IP address, and this IP address can be overridden by anybody that want to.\n\nVersions 2023.4.3 and 2023.5.5 contain a patch for this issue.\n"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-436",
              "description": "CWE-436: Interpretation Conflict",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-07-06T18:24:03.308Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/goauthentik/authentik/security/advisories/GHSA-cmxp-jcw7-jjjv",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/goauthentik/authentik/security/advisories/GHSA-cmxp-jcw7-jjjv"
        },
        {
          "name": "https://github.com/goauthentik/authentik/commit/15026748d19d490eb2baf9a9566ead4f805f7dff",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/goauthentik/authentik/commit/15026748d19d490eb2baf9a9566ead4f805f7dff"
        },
        {
          "name": "https://github.com/goauthentik/authentik/commit/c07a48a3eccbd7b23026f72136d3392bbc6f795a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/goauthentik/authentik/commit/c07a48a3eccbd7b23026f72136d3392bbc6f795a"
        },
        {
          "name": "https://goauthentik.io/docs/releases/2023.4#fixed-in-202343",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://goauthentik.io/docs/releases/2023.4#fixed-in-202343"
        },
        {
          "name": "https://goauthentik.io/docs/releases/2023.5#fixed-in-202355",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://goauthentik.io/docs/releases/2023.5#fixed-in-202355"
        }
      ],
      "source": {
        "advisory": "GHSA-cmxp-jcw7-jjjv",
        "discovery": "UNKNOWN"
      },
      "title": "Authentik lacks Proxy IP headers validation"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-36456",
    "datePublished": "2023-07-06T18:24:03.308Z",
    "dateReserved": "2023-06-21T18:50:41.698Z",
    "dateUpdated": "2024-11-14T14:10:35.658Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"2023.4.3\", \"matchCriteriaId\": \"52C86B38-B11B-493E-A757-FCEA6CAE56C6\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"2023.5.0\", \"versionEndExcluding\": \"2023.5.5\", \"matchCriteriaId\": \"A87D7283-831E-4C9B-9E69-0E7A342A2547\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"authentik is an open-source Identity Provider. Prior to versions 2023.4.3 and 2023.5.5, authentik does not verify the source of the X-Forwarded-For and X-Real-IP headers, both in the Python code and the go code. Only authentik setups that are directly accessible by users without a reverse proxy are susceptible to this. Possible spoofing of IP addresses in logs, downstream applications proxied by (built in) outpost, IP bypassing in custom flows if used.\\n\\nThis poses a possible security risk when someone has flows or policies that check the user\u0027s IP address, e.g. when they want to ignore the user\u0027s 2 factor authentication when the user is connected to the company network. A second security risk is that the IP addresses in the logfiles and user sessions are not reliable anymore. Anybody can spoof this address and one cannot verify that the user has logged in from the IP address that is in their account\u0027s log. A third risk is that this header is passed on to the proxied application behind an outpost. The application may do any kind of verification, logging, blocking or rate limiting based on the IP address, and this IP address can be overridden by anybody that want to.\\n\\nVersions 2023.4.3 and 2023.5.5 contain a patch for this issue.\\n\"}]",
      "id": "CVE-2023-36456",
      "lastModified": "2024-11-21T08:09:45.037",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"security-advisories@github.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L\", \"baseScore\": 8.3, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"LOW\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.7}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L\", \"baseScore\": 7.3, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"LOW\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.4}]}",
      "published": "2023-07-06T19:15:10.633",
      "references": "[{\"url\": \"https://github.com/goauthentik/authentik/commit/15026748d19d490eb2baf9a9566ead4f805f7dff\", \"source\": \"security-advisories@github.com\", \"tags\": [\"Patch\"]}, {\"url\": \"https://github.com/goauthentik/authentik/commit/c07a48a3eccbd7b23026f72136d3392bbc6f795a\", \"source\": \"security-advisories@github.com\", \"tags\": [\"Patch\"]}, {\"url\": \"https://github.com/goauthentik/authentik/security/advisories/GHSA-cmxp-jcw7-jjjv\", \"source\": \"security-advisories@github.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://goauthentik.io/docs/releases/2023.4#fixed-in-202343\", \"source\": \"security-advisories@github.com\", \"tags\": [\"Release Notes\"]}, {\"url\": \"https://goauthentik.io/docs/releases/2023.5#fixed-in-202355\", \"source\": \"security-advisories@github.com\", \"tags\": [\"Release Notes\"]}, {\"url\": \"https://github.com/goauthentik/authentik/commit/15026748d19d490eb2baf9a9566ead4f805f7dff\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://github.com/goauthentik/authentik/commit/c07a48a3eccbd7b23026f72136d3392bbc6f795a\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://github.com/goauthentik/authentik/security/advisories/GHSA-cmxp-jcw7-jjjv\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://goauthentik.io/docs/releases/2023.4#fixed-in-202343\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Release Notes\"]}, {\"url\": \"https://goauthentik.io/docs/releases/2023.5#fixed-in-202355\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Release Notes\"]}]",
      "sourceIdentifier": "security-advisories@github.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"security-advisories@github.com\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-436\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-36456\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2023-07-06T19:15:10.633\",\"lastModified\":\"2024-11-21T08:09:45.037\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"authentik is an open-source Identity Provider. Prior to versions 2023.4.3 and 2023.5.5, authentik does not verify the source of the X-Forwarded-For and X-Real-IP headers, both in the Python code and the go code. Only authentik setups that are directly accessible by users without a reverse proxy are susceptible to this. Possible spoofing of IP addresses in logs, downstream applications proxied by (built in) outpost, IP bypassing in custom flows if used.\\n\\nThis poses a possible security risk when someone has flows or policies that check the user\u0027s IP address, e.g. when they want to ignore the user\u0027s 2 factor authentication when the user is connected to the company network. A second security risk is that the IP addresses in the logfiles and user sessions are not reliable anymore. Anybody can spoof this address and one cannot verify that the user has logged in from the IP address that is in their account\u0027s log. A third risk is that this header is passed on to the proxied application behind an outpost. The application may do any kind of verification, logging, blocking or rate limiting based on the IP address, and this IP address can be overridden by anybody that want to.\\n\\nVersions 2023.4.3 and 2023.5.5 contain a patch for this issue.\\n\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L\",\"baseScore\":8.3,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":3.7},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L\",\"baseScore\":7.3,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":3.4}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-436\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2023.4.3\",\"matchCriteriaId\":\"52C86B38-B11B-493E-A757-FCEA6CAE56C6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2023.5.0\",\"versionEndExcluding\":\"2023.5.5\",\"matchCriteriaId\":\"A87D7283-831E-4C9B-9E69-0E7A342A2547\"}]}]}],\"references\":[{\"url\":\"https://github.com/goauthentik/authentik/commit/15026748d19d490eb2baf9a9566ead4f805f7dff\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/goauthentik/authentik/commit/c07a48a3eccbd7b23026f72136d3392bbc6f795a\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/goauthentik/authentik/security/advisories/GHSA-cmxp-jcw7-jjjv\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://goauthentik.io/docs/releases/2023.4#fixed-in-202343\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://goauthentik.io/docs/releases/2023.5#fixed-in-202355\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://github.com/goauthentik/authentik/commit/15026748d19d490eb2baf9a9566ead4f805f7dff\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/goauthentik/authentik/commit/c07a48a3eccbd7b23026f72136d3392bbc6f795a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/goauthentik/authentik/security/advisories/GHSA-cmxp-jcw7-jjjv\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://goauthentik.io/docs/releases/2023.4#fixed-in-202343\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://goauthentik.io/docs/releases/2023.5#fixed-in-202355\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://github.com/goauthentik/authentik/security/advisories/GHSA-cmxp-jcw7-jjjv\", \"name\": \"https://github.com/goauthentik/authentik/security/advisories/GHSA-cmxp-jcw7-jjjv\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}, {\"url\": \"https://github.com/goauthentik/authentik/commit/15026748d19d490eb2baf9a9566ead4f805f7dff\", \"name\": \"https://github.com/goauthentik/authentik/commit/15026748d19d490eb2baf9a9566ead4f805f7dff\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://github.com/goauthentik/authentik/commit/c07a48a3eccbd7b23026f72136d3392bbc6f795a\", \"name\": \"https://github.com/goauthentik/authentik/commit/c07a48a3eccbd7b23026f72136d3392bbc6f795a\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://goauthentik.io/docs/releases/2023.4#fixed-in-202343\", \"name\": \"https://goauthentik.io/docs/releases/2023.4#fixed-in-202343\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://goauthentik.io/docs/releases/2023.5#fixed-in-202355\", \"name\": \"https://goauthentik.io/docs/releases/2023.5#fixed-in-202355\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T16:45:56.967Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-36456\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-14T14:10:24.618779Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-14T14:10:31.743Z\"}}], \"cna\": {\"title\": \"Authentik lacks Proxy IP headers validation\", \"source\": {\"advisory\": \"GHSA-cmxp-jcw7-jjjv\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 8.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"LOW\"}}], \"affected\": [{\"vendor\": \"goauthentik\", \"product\": \"authentik\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 2023.4.3\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2023.5.0, \u003c 2023.5.5\"}]}], \"references\": [{\"url\": \"https://github.com/goauthentik/authentik/security/advisories/GHSA-cmxp-jcw7-jjjv\", \"name\": \"https://github.com/goauthentik/authentik/security/advisories/GHSA-cmxp-jcw7-jjjv\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/goauthentik/authentik/commit/15026748d19d490eb2baf9a9566ead4f805f7dff\", \"name\": \"https://github.com/goauthentik/authentik/commit/15026748d19d490eb2baf9a9566ead4f805f7dff\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/goauthentik/authentik/commit/c07a48a3eccbd7b23026f72136d3392bbc6f795a\", \"name\": \"https://github.com/goauthentik/authentik/commit/c07a48a3eccbd7b23026f72136d3392bbc6f795a\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://goauthentik.io/docs/releases/2023.4#fixed-in-202343\", \"name\": \"https://goauthentik.io/docs/releases/2023.4#fixed-in-202343\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://goauthentik.io/docs/releases/2023.5#fixed-in-202355\", \"name\": \"https://goauthentik.io/docs/releases/2023.5#fixed-in-202355\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"authentik is an open-source Identity Provider. Prior to versions 2023.4.3 and 2023.5.5, authentik does not verify the source of the X-Forwarded-For and X-Real-IP headers, both in the Python code and the go code. Only authentik setups that are directly accessible by users without a reverse proxy are susceptible to this. Possible spoofing of IP addresses in logs, downstream applications proxied by (built in) outpost, IP bypassing in custom flows if used.\\n\\nThis poses a possible security risk when someone has flows or policies that check the user\u0027s IP address, e.g. when they want to ignore the user\u0027s 2 factor authentication when the user is connected to the company network. A second security risk is that the IP addresses in the logfiles and user sessions are not reliable anymore. Anybody can spoof this address and one cannot verify that the user has logged in from the IP address that is in their account\u0027s log. A third risk is that this header is passed on to the proxied application behind an outpost. The application may do any kind of verification, logging, blocking or rate limiting based on the IP address, and this IP address can be overridden by anybody that want to.\\n\\nVersions 2023.4.3 and 2023.5.5 contain a patch for this issue.\\n\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-436\", \"description\": \"CWE-436: Interpretation Conflict\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2023-07-06T18:24:03.308Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-36456\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-14T14:10:35.658Z\", \"dateReserved\": \"2023-06-21T18:50:41.698Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2023-07-06T18:24:03.308Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.