Ettercap 0.8.2 ec_strings.c strescape memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Ettercap 0.8.2. The impacted element is the function strescape of the file ec_strings.c. Performing a manipulation results in memory corruption. This vulnerability is reported as CVE-2017-8366. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Ettercap 0.8.2 (Packet Analyzer Software). This affects the function strescape of the file ec_strings.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The strescape function in ec_strings.c in Ettercap 0.8.2 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted filter that is mishandled by etterfilter.

The bug was discovered 04/29/2017. The weakness was disclosed 04/30/2017 (Website). It is possible to read the advisory at blogs.gentoo.org. This vulnerability is uniquely identified as CVE-2017-8366 since 04/30/2017. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 100725 (Debian DSA-3874-1 : ettercap - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176053 (Debian Security Update for ettercap (DSA 3874-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (100725). The entry VDB-98163 is pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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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Nessus ID: 100725
Nessus Name: Debian DSA-3874-1 : ettercap - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703874
OpenVAS Name: Debian Security Advisory DSA 3874-1 (ettercap - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

04/29/2017 🔍
04/30/2017 +1 days 🔍
04/30/2017 +0 days 🔍
04/30/2017 +0 days 🔍
05/01/2017 +1 days 🔍
06/09/2017 +39 days 🔍
06/12/2017 +3 days 🔍
09/22/2020 +1198 days 🔍

Sourcesinfo

Advisory: blogs.gentoo.org
Status: Not defined

CVE: CVE-2017-8366 (🔍)
GCVE (CVE): GCVE-0-2017-8366
GCVE (VulDB): GCVE-100-100767

OVAL: 🔍

OSVDB: - CVE-2017-8366 - Ettercap - Buffer Overflow Issue

See also: 🔍

Entryinfo

Created: 05/01/2017 10:52
Updated: 09/22/2020 16:42
Changes: 05/01/2017 10:52 (74), 09/22/2020 16:42 (4)
Complete: 🔍
Cache ID: 216::103

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