CVE-2015-5397 in Joomla
Summary
by MITRE
Cross-site request forgery (CSRF) vulnerability in Joomla! 3.2.0 through 3.3.x and 3.4.x before 3.4.2 allows remote attackers to hijack the authentication of unspecified victims for requests that upload code via unknown vectors.
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Analysis
by VulDB Data Team • 06/01/2022
The CVE-2015-5397 vulnerability represents a critical cross-site request forgery flaw affecting Joomla installations. The vulnerability's impact extends beyond simple data manipulation as it allows attackers to upload malicious code through unspecified vectors that leverage the authentication of unsuspecting users.
The technical exploitation of this CSRF vulnerability occurs when an authenticated user visits a malicious website or clicks on a compromised link that triggers unauthorized actions on the vulnerable Joomla! system. The attack vector typically involves crafting specially crafted HTTP requests that appear legitimate to the target system because they include valid session tokens or authentication cookies. When the victim's browser automatically includes these authentication credentials, the malicious requests execute with the victim's privileges, effectively hijacking their authenticated session. This mechanism allows attackers to perform actions that the victim is authorized to execute, including uploading code to the server.
The operational impact of CVE-2015-5397 is particularly severe as it provides attackers with the capability to upload arbitrary code to vulnerable Joomla version streams simultaneously, indicating a widespread exposure across the user base and creating a significant attack surface for threat actors. The unspecified vectors mentioned in the description suggest that the vulnerability may be exploitable through various methods including form submissions, API calls, or other authenticated interfaces within the Joomla! framework.
Mitigation strategies for this vulnerability should focus on implementing proper CSRF protection mechanisms including the use of anti-CSRF tokens in all forms and requests that modify system state. Organizations should immediately upgrade to Joomla! version 3.4.2 or later where this vulnerability has been patched. The implementation of Content Security Policy headers and proper session management practices can provide additional layers of protection. According to ATT&CK framework category T1566, this vulnerability aligns with the credential access and persistence tactics that threat actors use to establish unauthorized access to systems. Security administrators should also implement network monitoring to detect suspicious file upload activities and conduct regular security assessments to identify other potential CSRF vulnerabilities in their web applications.