Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via the HTTP User-Agent header, as exploited in the wild in December 2015.
Published 2015-12-16 21:59:06
Updated 2018-10-09 19:58:35
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Input validation

Exploit prediction scoring system (EPSS) score for CVE-2015-8562

Probability of exploitation activity in the next 30 days: 97.31%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 100 % EPSS Score History EPSS FAQ

Metasploit modules for CVE-2015-8562

  • Joomla HTTP Header Unauthenticated Remote Code Execution
    Disclosure Date: 2015-12-14
    First seen: 2020-04-26
    exploit/multi/http/joomla_http_header_rce
    Joomla suffers from an unauthenticated remote code execution that affects all versions from 1.5.0 to 3.4.5. By storing user supplied headers in the databases session table it's possible to truncate the input by sending an UTF-8 character. The custom created payload is

CVSS scores for CVE-2015-8562

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST

CWE ids for CVE-2015-8562

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2015-8562

Products affected by CVE-2015-8562

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