CVE-2009-4491: Input Validation
First published: Wed Jan 13 2010(Updated: )
thttpd 2.25b0 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Thttpd Http Server | =2.25-b |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2009-4491?
CVE-2009-4491 is classified as a medium severity vulnerability due to the potential for remote code execution.
How do I fix CVE-2009-4491?
To fix CVE-2009-4491, update to a patched version of thttpd that sanitizes log file entries.
What are the potential impacts of exploiting CVE-2009-4491?
Exploiting CVE-2009-4491 could allow attackers to execute arbitrary commands or overwrite files.
Is thttpd 2.25-b the only affected version for CVE-2009-4491?
Yes, thttpd 2.25-b is specifically the affected version for CVE-2009-4491.
How can attackers exploit CVE-2009-4491?
Attackers can exploit CVE-2009-4491 by sending crafted HTTP requests that include non-printable characters.
- agent/references
- agent/author
- agent/type
- agent/event
- agent/softwarecombine
- agent/description
- agent/first-publish-date
- agent/weakness
- agent/severity
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- collector/nvd-historical
- vendor/acme
- canonical/thttpd http server
- version/thttpd http server/2.25-b