PCMan FTP Server 2.0.7 APPE Command 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 (≈)
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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.
8.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in PCMan FTP Server 2.0.7 and classified as critical. Affected by this vulnerability is an unknown functionality of the component APPE Command Handler. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2018-18861. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in PCMan FTP Server 2.0.7 (File Transfer Software) and classified as critical. Affected by this vulnerability is an unknown part of the component APPE Command Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in PCMan FTP Server 2.0.7 allows for remote code execution via the APPE command.

The bug was discovered 11/05/2018. The weakness was shared 11/20/2018 (Website). It is possible to read the advisory at packetstormsecurity.com. This vulnerability is known as CVE-2018-18861 since 10/30/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 15 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/30/2018 🔍
11/05/2018 +6 days 🔍
11/20/2018 +15 days 🔍
11/20/2018 +0 days 🔍
11/21/2018 +1 days 🔍
06/11/2023 +1663 days 🔍

Sourcesinfo

Advisory: 150174
Status: Not defined

CVE: CVE-2018-18861 (🔍)
GCVE (CVE): GCVE-0-2018-18861
GCVE (VulDB): GCVE-100-127039

Entryinfo

Created: 11/21/2018 12:24
Updated: 06/11/2023 08:49
Changes: 11/21/2018 12:24 (57), 04/14/2020 11:13 (1), 06/11/2023 08:49 (3)
Complete: 🔍
Cache ID: 216::103

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