CVE-2003-0899

thttpd 2.2x - 'defang' Remote Buffer Overflow (PoC)

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Buffer overflow in defang in libhttpd.c for thttpd 2.21 to 2.23b1 allows remote attackers to execute arbitrary code via requests that contain '<' or '>' characters, which trigger the overflow when the characters are expanded to "<" and ">" sequences.

Desbordamiento de búfer en la función defang en libhttpd.c de thttpd 2.21 a 2.23b1, permite a atacantes remotos ejecutar código de su elección mediante peticiones que contienen caracteres '<' ó '>' que provocan el desbordamiento cuando son expandidos a las secuencias "<" y ">".

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2003-10-27 First Exploit
2003-10-28 CVE Reserved
2003-10-30 CVE Published
2024-08-08 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-131: Incorrect Calculation of Buffer Size

CAPEC

References (9)

URL	Tag	Source
http://www.osvdb.org/2729	Broken Link
http://www.texonet.com/advisories/TEXONET-20030908.txt	Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/13530	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/23305	2003-10-27
https://www.exploit-db.com/exploits/23306	2003-10-27
http://marc.info/?l=bugtraq&m=106729188224252&w=2	2024-08-08
http://www.securityfocus.com/bid/8906	2024-08-08

URL	Date	SRC
http://secunia.com/advisories/10092	2024-02-14

URL	Date	SRC
https://www.debian.org/security/2003/dsa-396	2024-02-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Acme Search vendor "Acme"		Thttpd Search vendor "Acme" for product "Thttpd"				>= 2.21 < 2.23 Search vendor "Acme" for product "Thttpd" and version " >= 2.21 < 2.23"		-		Affected
Acme Search vendor "Acme"		Thttpd Search vendor "Acme" for product "Thttpd"				2.23 Search vendor "Acme" for product "Thttpd" and version "2.23"		-		Affected
Acme Search vendor "Acme"		Thttpd Search vendor "Acme" for product "Thttpd"				2.23 Search vendor "Acme" for product "Thttpd" and version "2.23"		b1		Affected