tinc VPN up to 1.1 net_packet.c receive_tcppacket memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in tinc VPN 1.0.17/1.0.18/1.0.19/1.0.20/1.1. Impacted is the function receive_tcppacket of the file net_packet.c. Executing a manipulation can lead to memory corruption. This vulnerability is handled as CVE-2013-1428. Additionally, an exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in tinc VPN 1.0.17/1.0.18/1.0.19/1.0.20/1.1 (Network Encryption Software). This vulnerability affects the function receive_tcppacket of the file net_packet.c. 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. CVE summarizes:

Stack-based buffer overflow in the receive_tcppacket function in net_packet.c in tinc before 1.0.21 and 1.1 before 1.1pre7 allows remote authenticated peers to cause a denial of service (crash) or possibly execute arbitrary code via a large TCP packet.

The weakness was released 04/26/2013 by Martin (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2013-1428 since 01/26/2013. The exploitation appears to be easy. The attack can be initiated remotely. The successful exploitation requires a single authentication. Technical details and also a public exploit are known.

A public exploit has been developed in Ruby. It is possible to download the exploit at securityfocus.com. It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 66180 (Debian DSA-2663-1 : tinc - stack based buffer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 123012 (tincd TCP Stack Overflow Vulnerability).

Upgrading to version 1.0.19 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (35441), Tenable (66180), SecurityFocus (BID 59369†), OSVDB (92653†) and Secunia (SA53087†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: 🔍
Access: Public
Status: Highly functional
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 66180
Nessus Name: Debian DSA-2663-1 : tinc - stack based buffer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 892663
OpenVAS Name: Debian Security Advisory DSA 2663-1 (tinc - stack based buffer overflow
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: tincd_bof.rb
MetaSploit Name: Tincd Post-Authentication Remote TCP Stack Buffer Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: VPN 1.0.19
Patch: github.com

Timelineinfo

01/26/2013 🔍
04/22/2013 +86 days 🔍
04/22/2013 +0 days 🔍
04/23/2013 +1 days 🔍
04/23/2013 +0 days 🔍
04/26/2013 +3 days 🔍
04/26/2013 +0 days 🔍
04/29/2013 +3 days 🔍
03/24/2015 +694 days 🔍
12/27/2024 +3566 days 🔍

Sourcesinfo

Advisory: DSA-2663
Researcher: Martin
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-1428 (🔍)
GCVE (CVE): GCVE-0-2013-1428
GCVE (VulDB): GCVE-100-64036

OVAL: 🔍

SecurityFocus: 59369 - tinc CVE-2013-1428 Stack Buffer Overflow Vulnerability
Secunia: 53087 - Debian update for tinc, Moderately Critical
OSVDB: 92653
Vulnerability Center: 39384 - Tinc Before 1.0.21 and 1.1 Before 1.1pre7 Remote Authenticated DoS via a Large TCP Packet, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/24/2015 15:54
Updated: 12/27/2024 23:10
Changes: 03/24/2015 15:54 (72), 04/28/2017 10:05 (13), 01/02/2022 11:13 (4), 01/02/2022 11:21 (1), 01/02/2022 11:28 (2), 12/26/2024 18:38 (17), 12/27/2024 23:10 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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