WebLog Expert Web Server Enterprise 9.4 Service Port 9991 HTTP Accept Header data processing

CVSS Meta Temp Score
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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.
6.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in WebLog Expert Web Server Enterprise 9.4 and classified as problematic. The impacted element is an unknown function of the component Service Port 9991. The manipulation as part of HTTP Accept Header leads to data processing. This vulnerability is documented as CVE-2018-7582. The attack can be initiated remotely. Additionally, an exploit exists. It is recommended to apply restrictive firewalling.

Detailsinfo

A vulnerability was found in WebLog Expert Web Server Enterprise 9.4 (Web Server) and classified as problematic. This issue affects an unknown part of the component Service Port 9991. The manipulation as part of a HTTP Accept Header leads to a data processing vulnerability. Using CWE to declare the problem leads to CWE-19. Impacted is availability. The summary by CVE is:

WebLog Expert Web Server Enterprise 9.4 allows Remote Denial Of Service (daemon crash) via a long HTTP Accept Header to TCP port 9991.

The bug was discovered 03/07/2018. The weakness was released 03/09/2018 (Website). The advisory is shared at hyp3rlinx.altervista.org. The identification of this vulnerability is CVE-2018-7582 since 03/01/2018. 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 are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k.

Addressing this vulnerability is possible by firewalling tcp/9991.

The vulnerability is also documented in the vulnerability database at Exploit-DB (44271). Entry connected to this vulnerability is available at VDB-114340. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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: Data processing
CWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Firewalling: 🔍

Timelineinfo

03/01/2018 🔍
03/07/2018 +6 days 🔍
03/09/2018 +2 days 🔍
03/09/2018 +0 days 🔍
03/11/2018 +2 days 🔍
09/25/2025 +2755 days 🔍

Sourcesinfo

Advisory: 146698
Status: Not defined

CVE: CVE-2018-7582 (🔍)
GCVE (CVE): GCVE-0-2018-7582
GCVE (VulDB): GCVE-100-114341
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/11/2018 08:05
Updated: 09/25/2025 03:37
Changes: 03/11/2018 08:05 (61), 01/12/2020 10:26 (4), 02/21/2023 08:48 (4), 09/25/2025 03:37 (18)
Complete: 🔍
Cache ID: 216:3BE:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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