CVE-2009-0843: Input Validation
The msLoadQuery function in mapserv in MapServer 4.x before 4.10.4 and 5.x before 5.2.2 allows remote attackers to determine the existence of arbitrary files via a full pathname in the queryfile parameter, which triggers different error messages depending on whether this pathname exists.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2009-0843?
CVE-2009-0843 is classified as a moderate severity vulnerability due to the information disclosure it can cause.
How do I fix CVE-2009-0843?
To fix CVE-2009-0843, upgrade to MapServer version 4.10.4 or higher, or 5.2.2 or higher.
What causes CVE-2009-0843?
CVE-2009-0843 is caused by the msLoadQuery function allowing remote attackers to ascertain the existence of files via error messages.
Which software versions are affected by CVE-2009-0843?
CVE-2009-0843 affects MapServer versions 4.x before 4.10.4 and 5.x before 5.2.2.
Is CVE-2009-0843 a critical vulnerability?
No, CVE-2009-0843 is not considered critical; it primarily poses a risk of information disclosure.