Home/CVE/thttpd 2.25b0 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers
CVE

CVE-2009-4491

thttpd 2.25b0 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers

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.

CRITICAL · CVSS 9.8 EPSS 0.02714
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-94Improper Control of Generation of Code ('Code Injection')
▤

Affected Products & Versions

1
acme thttpdall versions
⚠

Public Exploits & PoCs

3
remotethttpd 2.24 - HTTP Request Escape Sequence Terminal Command Injectionverified
pocpacketstormsecurity.com · m-privacy-TightGate-Pro-Code-Execution-Insecure-Permissio...packetstormsecurity.com
pocwww.ush.it · adv.txtwww.ush.it
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · 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 NVD13 Jan 2010 · 08:30 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2023/Nov/13
http://www.securityfocus.com/archive/1/508830/100/0/threaded
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