cve-2020-1935
Vulnerability from cvelistv5
Published
2020-02-24 21:11
Modified
2024-08-04 06:53
Severity ?
Summary
In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.
References
security@apache.orghttp://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.htmlBroken Link, Mailing List, Third Party Advisory
security@apache.orghttps://lists.apache.org/thread.html/r127f76181aceffea2bd4711b03c595d0f115f63e020348fe925a916c%40%3Cannounce.tomcat.apache.org%3EMailing List, Vendor Advisory
security@apache.orghttps://lists.apache.org/thread.html/r441c1f30a252bf14b07396286f6abd8089ce4240e91323211f1a2d75%40%3Cusers.tomcat.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/r660cd379afe346f10d72c0eaa8459ccc95d83aff181671b7e9076919%40%3Cusers.tomcat.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78%40%3Ccommits.tomee.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/r80e9c8417c77d52c62809168b96912bda70ddf7748f19f8210f745b1%40%3Cusers.tomcat.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/r9ce7918faf347e7aac32be930bf26c233b0b140fe37af0bb294158b6%40%3Cdev.tomcat.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/ra5dee390ad2d60307b8362505c059cd6a726de4d146d63dfce1e05e7%40%3Cusers.tomcat.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743%40%3Ccommits.tomee.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/rd547be0c9d821b4b1000a694b8e58ef9f5e2d66db03a31dfe77c4b18%40%3Cusers.tomcat.apache.org%3E
security@apache.orghttps://lists.debian.org/debian-lts-announce/2020/03/msg00006.htmlMailing List, Third Party Advisory
security@apache.orghttps://lists.debian.org/debian-lts-announce/2020/05/msg00026.htmlMailing List, Third Party Advisory
security@apache.orghttps://security.netapp.com/advisory/ntap-20200327-0005/Third Party Advisory
security@apache.orghttps://usn.ubuntu.com/4448-1/Third Party Advisory
security@apache.orghttps://www.debian.org/security/2020/dsa-4673Third Party Advisory
security@apache.orghttps://www.debian.org/security/2020/dsa-4680Third Party Advisory
security@apache.orghttps://www.oracle.com/security-alerts/cpujan2021.htmlThird Party Advisory
security@apache.orghttps://www.oracle.com/security-alerts/cpujul2020.htmlThird Party Advisory
security@apache.orghttps://www.oracle.com/security-alerts/cpuoct2020.htmlThird Party Advisory
Impacted products
ApacheApache Tomcat
Show details on NVD website


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              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4448-1/"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuoct2020.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpujan2021.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
            },
            {
              "name": "[tomcat-dev] 20210428 [Bug 65272] Problems proccessing HTTP request without CR in last versions",
              "refsource": "MLIST",
              "url": "https://lists.apache.org/thread.html/r9ce7918faf347e7aac32be930bf26c233b0b140fe37af0bb294158b6@%3Cdev.tomcat.apache.org%3E"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2020-1935",
    "datePublished": "2020-02-24T21:11:38",
    "dateReserved": "2019-12-02T00:00:00",
    "dateUpdated": "2024-08-04T06:53:59.921Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-1935\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2020-02-24T22:15:11.980\",\"lastModified\":\"2023-11-07T03:19:36.620\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.\"},{\"lang\":\"es\",\"value\":\"En Apache Tomcat versiones 9.0.0.M1 hasta 9.0.30, versiones 8.5.0 hasta 8.5.50 y versiones 7.0.0 hasta 7.0.99, el c\u00f3digo de an\u00e1lisis del encabezado HTTP utiliz\u00f3 un enfoque para el an\u00e1lisis de fin de l\u00ednea que permiti\u00f3 a algunos encabezados HTTP no v\u00e1lidos ser analizados como v\u00e1lidos. Esto conllev\u00f3 a una posibilidad de Tr\u00e1fico No Autorizado de Peticiones HTTP si Tomcat se encontraba detr\u00e1s de un proxy inverso que manejaba incorrectamente el encabezado Transfer-Encoding no v\u00e1lido en una manera particular. Tal proxy inverso es considerado 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  }
}


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