XXE in Apple Ipados
CVE-2013-0340
expat before version 2.4.0 does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.194 (97.3th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.194 · newest: 0.194 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- openwall.com/lists/oss-security/2013/02/22/3 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2013/04/12/6 (mailing-list, Mailing List, Third Party Advisory)
- www.osvdb.org/90634 (vdb-entry, Broken Link)
- securitytracker.com/id (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201701-21 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/58233 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- support.apple.com/kb/HT212805 (Third Party Advisory)
- support.apple.com/kb/HT212804 (Third Party Advisory)
- support.apple.com/kb/HT212807 (Third Party Advisory)
- support.apple.com/kb/HT212819 (Third Party Advisory)
Frequently asked questions
- What is CVE-2013-0340?
- CVE-2013-0340 is a vulnerability in Apple Ipados, classified under Improper Restriction of XML External Entity Reference (XXE). Published 2014-01-21.
- Is CVE-2013-0340 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.