CVE-2017-15698 (GCVE-0-2017-15698)

Vulnerability from cvelistv5 – Published: 2018-01-31 14:00 – Updated: 2024-09-16 16:12
VLAI
Summary
When parsing the AIA-Extension field of a client certificate, Apache Tomcat Native Connector 1.2.0 to 1.2.14 and 1.1.23 to 1.1.34 did not correctly handle fields longer than 127 bytes. The result of the parsing error was to skip the OCSP check. It was therefore possible for client certificates that should have been rejected (if the OCSP check had been made) to be accepted. Users not using OCSP checks are not affected by this vulnerability.
Severity
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • Access Control Bypass
Assigner
apache CNA under the mitre root
CNA scorecard B 76/100 over 1112 records in the last 180 days details
References
URL Tags
https://www.debian.org/security/2018/dsa-4118 vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2018… mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2018:0465 vendor-advisoryx_refsource_REDHAT
http://www.securitytracker.com/id/1040390 vdb-entryx_refsource_SECTRACK
https://lists.apache.org/thread.html/6eb0a53e5827… mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2018:0466 vendor-advisoryx_refsource_REDHAT
https://lists.apache.org/thread.html/ba661b0edd91… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/f8e0814e11c7… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rf8e8c091182… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/re3b72cbb13e… mailing-listx_refsource_MLIST
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Tomcat Native Affected: 1.2.0 to 1.2.14
Affected: 1.1.23 to 1.1.34
guessed Create a notification for this product.
Date Public
2018-01-31 00:00
Show details on NVD website
To clipboard 

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          "tags": [
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          "url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00011.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4118"
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      ],
      "sourceIdentifier": "security@apache.org",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-295"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
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                    "matchCriteriaId": "A362CAA5-51E6-45FC-AF1F-92D7D427FA3B",
                    "versionEndIncluding": "1.1.34",
                    "versionStartIncluding": "1.1.23",
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                    "matchCriteriaId": "C6375F66-17C3-402F-A32D-2ECC636A86CC",
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "When parsing the AIA-Extension field of a client certificate, Apache Tomcat Native Connector 1.2.0 to 1.2.14 and 1.1.23 to 1.1.34 did not correctly handle fields longer than 127 bytes. The result of the parsing error was to skip the OCSP check. It was therefore possible for client certificates that should have been rejected (if the OCSP check had been made) to be accepted. Users not using OCSP checks are not affected by this vulnerability."
          },
          {
            "lang": "es",
            "value": "Al analizar el campo AIA-Extension de un certificado de cliente, Apache Tomcat Native Connector en versiones 1.2.0 a 1.2.14 y 1.1.23 a 1.1.34 no gestion\u00f3 correctamente los campos superiores a los 127 bytes. El resultado del error de an\u00e1lisis fue la omisi\u00f3n de la comprobaci\u00f3n OCSP. Por lo tanto, era posible que se aceptasen certificados de cliente que deber\u00edan haber sido rechazados (si se hubiese realizado la comprobaci\u00f3n OCSP). Los usuarios que no empleen las comprobaciones OCSP no se han visto afectados por la vulnerabilidad."
          }
        ],
        "id": "CVE-2017-15698",
        "lastModified": "2024-11-21T03:15:01.587",
        "metrics": {
          "cvssMetricV2": [
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              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
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                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.9,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                "version": "3.0"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2018-01-31T14:29:00.467",
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            "tags": [
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        "sourceIdentifier": "security@apache.org",
        "vulnStatus": "Modified",
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          {
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                "value": "CWE-295"
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    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T17:00:43+00:00",
      "cve": "CVE-2017-15698",
      "id": "CVE-2017-15698",
      "initial_release_date": "2017-01-01T00:00:00+00:00",
      "product_status:fixed": "77",
      "product_status:known_affected": "2",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "tomcat-native: Mishandling of client certificates can allow for OCSP check bypass",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-15698.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-05T01:18:41Z",
      "cve": "CVE-2017-15698",
      "id": "CVE-2017-15698",
      "initial_release_date": "2023-02-15T04:38:05Z",
      "product_status:known_not_affected": "135",
      "product_status:recommended": "16",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2017-15698",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-15698.json",
      "version": "10"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

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