| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 9.2 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical has been found in Host. This affects an unknown part of the component FTP Server. This manipulation causes privileges management. This vulnerability is registered as CVE-1999-0527. Remote exploitation of the attack is possible. Furthermore, an exploit is available. Due to its background and reception, this vulnerability has an historic impact. It is recommended to change the configuration settings.
Details
A vulnerability was found in Host (version now known). It has been declared as very critical. Affected by this vulnerability is some unknown processing of the component FTP Server. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
The permissions for system-critical data in an anonymous FTP account are inappropriate. For example, the root directory is writeable by world, a real password file is obtainable, or executable commands such as "ls" can be overwritten.
The weakness was published 01/01/1999. This vulnerability is known as CVE-1999-0527. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/17/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. Due to its background and reception, this vulnerability has a historic impact.
It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 10088 (Anonymous FTP Writable root Directory), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FTP and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 27031 (.forward" File Present on Anonymous FTP Server).
It is possible to mitigate the problem by applying the configuration setting .Proper firewalling of tcp/21 (ftp) is able to address this issue. The best possible mitigation is suggested to be the change of configuration settings.
The vulnerability is also documented in the databases at X-Force (6253), Tenable (10088) and Vulnerability Center (SBV-633†). Similar entries are available at VDB-14338, VDB-14334, VDB-14333 and VDB-14331. Be aware that VulDB is the high quality source for vulnerability data.
Product
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 9.8VulDB Meta Temp Score: 9.2
VulDB Base Score: 9.8
VulDB Temp Score: 9.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Privileges managementCWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Highly functional
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 10088
Nessus Name: Anonymous FTP Writable root Directory
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: ConfigStatus: 🔍
0-Day Time: 🔍
Firewalling: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍
Timeline
01/01/1999 🔍01/01/1999 🔍
01/01/1999 🔍
06/22/1999 🔍
01/02/2003 🔍
06/19/2014 🔍
04/17/2026 🔍
Sources
Status: Not definedCVE: CVE-1999-0527 (🔍)
GCVE (CVE): GCVE-0-1999-0527
GCVE (VulDB): GCVE-100-14335
X-Force: 6253
Vulnerability Center: 633 - FTP server without restrictions, High
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍
Entry
Created: 06/20/2014 00:43Updated: 04/17/2026 22:15
Changes: 06/20/2014 00:43 (55), 05/07/2019 23:17 (8), 10/25/2025 23:12 (27), 04/17/2026 22:15 (1)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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