CVE-2017-17762 - Improper Restriction of XML External Entity Reference

Severity

50%

Complexity

99%

Confidentiality

48%

XML external entity (XXE) vulnerability in Episerver 7 patch 4 and earlier allows remote attackers to read arbitrary files via a crafted DTD in an XML request involving util/xmlrpc/Handler.ashx.

XML external entity (XXE) vulnerability in Episerver 7 patch 4 and earlier allows remote attackers to read arbitrary files via a crafted DTD in an XML request involving util/xmlrpc/Handler.ashx.

CVSS 3.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N).

Overview

Type

EPiServer 7 Patch

First reported 6 years ago

2018-08-29 19:29:00

Last updated 6 years ago

2018-11-08 18:51:00

Affected Software

EPiServer 7 Patch 1

7

EPiServer 7 Patch 2

7

EPiServer 7 Patch 3

7

EPiServer 7 Patch 4

7

References

https://gist.github.com/jonaslejon/5f92779848360a1a1e676af0795bd9aa

Exploit, Third Party Advisory

https://kryptera.se/sarbarhet-i-episerver/

Exploit, Mitigation, Third Party Advisory

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