ubuntu-cve-2020-28361
Vulnerability from osv_ubuntu
Published
2020-11-18 14:15
Modified
2025-09-08 16:46
Summary
Details

Kamailio before 5.4.0, as used in Sip Express Router (SER) in Sippy Softswitch 4.5 through 5.2 and other products, allows a bypass of a header-removal protection mechanism via whitespace characters. This occurs in the remove_hf function in the Kamailio textops module. Particular use of remove_hf in Sippy Softswitch may allow skilled attacker having a valid credential in the system to disrupt internal call start/duration accounting mechanisms leading potentially to a loss of revenue.

Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "kamailio",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-autheph-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-berkeley-bin",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-berkeley-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-carrierroute-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-cnxcc-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-cpl-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-dnssec-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-erlang-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-extra-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-geoip-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-ims-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-java-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-json-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-kazoo-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-ldap-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-lua-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-memcached-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-mono-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-mysql-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-outbound-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-perl-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-postgres-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-presence-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-purple-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-python-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-radius-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-redis-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-sctp-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-snmpstats-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-sqlite-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-tls-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-unixodbc-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-utils-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-websocket-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-xml-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          },
          {
            "binary_name": "kamailio-xmpp-modules",
            "binary_version": "4.3.4-1.1ubuntu2.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "kamailio",
        "purl": "pkg:deb/ubuntu/kamailio@4.3.4-1.1ubuntu2.1+esm2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.3.1-2ubuntu1",
        "4.3.4-1.1ubuntu1",
        "4.3.4-1.1ubuntu2",
        "4.3.4-1.1ubuntu2.1",
        "4.3.4-1.1ubuntu2.1+esm1",
        "4.3.4-1.1ubuntu2.1+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "kamailio",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-autheph-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-berkeley-bin",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-berkeley-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-carrierroute-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-cnxcc-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-cpl-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-erlang-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-extra-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-geoip-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-geoip2-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-ims-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-json-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-kazoo-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-ldap-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-lua-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-memcached-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-mongodb-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-mono-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-mysql-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-outbound-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-perl-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-phonenum-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-postgres-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-presence-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-python-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-rabbitmq-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-radius-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-redis-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-sctp-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-snmpstats-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-sqlite-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-systemd-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-tls-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-unixodbc-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-utils-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-websocket-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-xml-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          },
          {
            "binary_name": "kamailio-xmpp-modules",
            "binary_version": "5.1.2-1ubuntu2+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "kamailio",
        "purl": "pkg:deb/ubuntu/kamailio@5.1.2-1ubuntu2+esm2?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.1.2-1ubuntu2+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.4.2-3ubuntu5",
        "5.0.4-1ubuntu1",
        "5.1.1-1ubuntu1",
        "5.1.1-1ubuntu4",
        "5.1.2-1ubuntu1",
        "5.1.2-1ubuntu2",
        "5.1.2-1ubuntu2+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "kamailio",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-autheph-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-berkeley-bin",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-berkeley-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-cnxcc-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-cpl-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-erlang-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-extra-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-geoip-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-geoip2-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-ims-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-json-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-kazoo-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-ldap-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-lua-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-memcached-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-mongodb-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-mono-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-mysql-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-outbound-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-perl-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-phonenum-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-postgres-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-presence-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-python3-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-rabbitmq-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-radius-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-redis-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-ruby-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-sctp-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-snmpstats-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-sqlite-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-systemd-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-tls-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-unixodbc-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-utils-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-websocket-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-xml-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "kamailio-xmpp-modules",
            "binary_version": "5.3.2-1ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "kamailio",
        "purl": "pkg:deb/ubuntu/kamailio@5.3.2-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.3.2-1ubuntu0.1~esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.2.3-1build3",
        "5.2.3-1build4",
        "5.3.0-2",
        "5.3.1-1",
        "5.3.2-1build1",
        "5.3.2-1build2",
        "5.3.2-1build3",
        "5.3.2-1ubuntu0.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "Kamailio before 5.4.0, as used in Sip Express Router (SER) in Sippy Softswitch 4.5 through 5.2 and other products, allows a bypass of a header-removal protection mechanism via whitespace characters. This occurs in the remove_hf function in the Kamailio textops module. Particular use of remove_hf in Sippy Softswitch may allow skilled attacker having a valid credential in the system to disrupt internal call start/duration accounting mechanisms leading potentially to a loss of revenue.",
  "id": "UBUNTU-CVE-2020-28361",
  "modified": "2025-09-08T16:46:28Z",
  "published": "2020-11-18T14:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-28361"
    },
    {
      "type": "REPORT",
      "url": "https://packetstormsecurity.com/files/159030/Kamailio-5.4.0-Header-Smuggling.html"
    },
    {
      "type": "REPORT",
      "url": "https://support.sippysoft.com/support/discussions/topics/3000179616"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-28361"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7416-1"
    }
  ],
  "related": [
    "USN-7416-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-28361"
  ]
}



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