VDB-15815 · CVE-2000-0359 · XFDB 4852

Acme Labs thttpd up to 2.0.4 If-Modified-Since Header tdate_parse memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.5	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Acme Labs thttpd up to 2.0.4. This affects the function tdate_parse of the component If-Modified-Since Header Handler. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2000-0359. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Acme Labs thttpd up to 2.0.4 (Web Server). This issue affects the function tdate_parse of the component If-Modified-Since Header Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in Trivial HTTP (THTTPd) allows remote attackers to cause a denial of service or execute arbitrary commands via a long If-Modified-Since header.

The weakness was published 10/20/2000 (Website). It is possible to read the advisory at securityfocus.com. The identification of this vulnerability is CVE-2000-0359. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/16/2025).

The vulnerability scanner Nessus provides a plugin with the ID 10285 (thttpd 2.04 If-Modified-Since Header Remote Buffer Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 86070 (Acme THTTPd Buffer Overflow Vulnerability).

Upgrading to version 2.0.5 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (4852), Tenable (10285), SecurityFocus (BID 1248†) and Vulnerability Center (SBV-126†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Web Server

Vendor

Acme Labs

Name

thttpd

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 10285
Nessus Name: thttpd 2.04 If-Modified-Since Header Remote Buffer Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: thttpd 2.0.5
McAfee IPS: 🔍
McAfee IPS Version: 🔍

Timelineinfo

11/10/1999 🔍
11/14/1999 +4 days 🔍
10/20/2000 +341 days 🔍
10/20/2000 +0 days 🔍
10/20/2000 +0 days 🔍
10/15/2002 +725 days 🔍
06/25/2014 +4271 days 🔍
10/16/2025 +4131 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Status: Confirmed

CVE: CVE-2000-0359 (🔍)
GCVE (CVE): GCVE-0-2000-0359
GCVE (VulDB): GCVE-100-15815
X-Force: 4852
SecurityFocus: 1248 - thttpd tdate_parse() Stack Overflow Vulnerability
Vulnerability Center: 126 - Buffer Overflow in Thttpd Server via Long If-Modified-Since Header Enables Code Execution, High

Entryinfo

Created: 06/25/2014 16:12
Updated: 10/16/2025 11:52
Changes: 06/25/2014 16:12 (67), 05/05/2019 07:58 (2), 10/16/2025 11:52 (19)
Complete: 🔍
Cache ID: 216::103