CVSS 6.5 · Medium EPSS 0,21%
Kerentanan Improper Restriction of XML External Entity Reference pada sangoma asterisk, sangoma certified asterisk. Skor CVSS 3.1 6.5 (Medium) menurut NVD.
Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, the ast_xml_open() function in xml.c parses XML documents using libxml with unsafe parsing options that enable entity expansion and XInclude processing. Specifically, it invokes xmlReadFile() with the XML_PARSE_NOENT flag and later processes XIncludes via xmlXIncludeProcess().If any untrusted or user-supplied XML file is passed to this function, it can allow an attacker to trigger XML External Entity (XXE) or XInclude-based local file disclosure, potentially exposing sensitive files from the host system. This can also be triggered in other cases in which the user is able to supply input in xml format that triggers the asterisk process to parse it. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| sangoma | asterisk | Semua versi sebelum 20.18.2 |
| sangoma | asterisk | Versi 21.0.0 hingga sebelum 21.12.1 |
| sangoma | asterisk | Versi 22.0.0 hingga sebelum 22.8.2 |
| sangoma | asterisk | Versi 23.0.0 hingga sebelum 23.2.2 |
| sangoma | certified asterisk | Semua versi hingga 18.9 |
| sangoma | certified asterisk | Versi 20.7 cert1 |
| sangoma | certified asterisk | Versi 20.7 cert1-rc1 |
| sangoma | certified asterisk | Versi 20.7 cert1-rc2 |
| sangoma | certified asterisk | Versi 20.7 cert2 |
| sangoma | certified asterisk | Versi 20.7 cert3 |
| sangoma | certified asterisk | Versi 20.7 cert4 |
| sangoma | certified asterisk | Versi 20.7 cert5 |
| sangoma | certified asterisk | Versi 20.7 cert6 |
| sangoma | certified asterisk | Versi 20.7 cert7 |
| sangoma | certified asterisk | Versi 20.7 cert8 |