Home/CVE/An issue was discovered in Joomla! before 3.9.3. The phar:// stream wrapper can be used for objection injection attacks
CVE

CVE-2019-7743

An issue was discovered in Joomla! before 3.9.3. The phar:// stream wrapper can be used for objection injection attacks

An issue was discovered in Joomla! before 3.9.3. The phar:// stream wrapper can be used for objection injection attacks because there is no protection mechanism (such as the TYPO3 PHAR stream wrapper) to prevent use of the phar:// handler for non .phar-files.

CRITICAL · CVSS 9.8 EPSS 0.01009
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-502Deserialization of Untrusted Data
CWE-917Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
▤

Affected Products & Versions

1
joomla joomla\!>= 2.5.0 and <= 3.9.2
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 Feb 2019 · 06:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/107050Third Party AdvisoryVDB Entry
https://developer.joomla.org/security-centre/770-20190206-core-implement-the-typo3-phar-stream-wrapperVendor Advisory
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