FreeBSD 8.3/9.0/9.1/9.2 SCTP Packet information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in FreeBSD 8.3/9.0/9.1/9.2. It has been declared as problematic. This issue affects some unknown processing of the component SCTP Packet Handler. Such manipulation leads to information disclosure. This vulnerability is listed as CVE-2013-5209. In addition, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in FreeBSD 8.3/9.0/9.1/9.2 (Operating System) and classified as critical. Affected by this issue is some unknown processing of the component SCTP Packet Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

The sctp_send_initiate_ack function in sys/netinet/sctp_output.c in the SCTP implementation in the kernel in FreeBSD 8.3 through 9.2-PRERELEASE does not properly initialize the state-cookie data structure, which allows remote attackers to obtain sensitive information from kernel stack memory by reading packet data in INIT-ACK chunks.

The weakness was presented 08/22/2013 by Julian Seward and Michael Tuexen as confirmed advisory (Website). The advisory is available at freebsd.org. The public release was coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2013-5209 since 08/15/2013. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

After immediately, there has been an exploit disclosed. The exploit is available at seclists.org. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 69483 (Debian DSA-2743-1 : kfreebsd-9 - privilege escalation/information leak), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks.

Upgrading to version 9.2-PRERELEASE eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at security.freebsd.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (69483), SecurityFocus (BID 61939†), OSVDB (96519†), Secunia (SA54496†) and Vulnerability Center (SBV-41190†). See VDB-9811, VDB-10057 and VDB-100035 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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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Nessus ID: 69483
Nessus Name: Debian DSA-2743-1 : kfreebsd-9 - privilege escalation/information leak
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 892743
OpenVAS Name: Debian Security Advisory DSA 2743-1 (kfreebsd-9 - privilege escalation/information leak
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: FreeBSD 9.2-PRERELEASE
Patch: security.freebsd.org

Timelineinfo

08/15/2013 🔍
08/22/2013 +7 days 🔍
08/22/2013 +0 days 🔍
08/22/2013 +0 days 🔍
08/22/2013 +0 days 🔍
08/22/2013 +0 days 🔍
08/25/2013 +3 days 🔍
08/28/2013 +3 days 🔍
08/29/2013 +1 days 🔍
05/21/2021 +2822 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: freebsd.org
Researcher: Julian Seward, Michael Tuexen
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-5209 (🔍)
GCVE (CVE): GCVE-0-2013-5209
GCVE (VulDB): GCVE-100-10058

OVAL: 🔍

SecurityFocus: 61939 - FreeBSD CVE-2013-5209 Information Disclosure Vulnerability
Secunia: 54496 - Debian update for kfreebsd-9, Less Critical
OSVDB: 96519
SecurityTracker: 1028940
Vulnerability Center: 41190 - FreeBSD SCTP Cookies Remote Information Disclosure Vulnerability - CVE-2013-5209, Medium

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

Entryinfo

Created: 08/28/2013 13:05
Updated: 05/21/2021 17:46
Changes: 08/28/2013 13:05 (80), 05/09/2017 10:28 (3), 05/21/2021 17:38 (3), 05/21/2021 17:46 (1)
Complete: 🔍
Committer:
Cache ID: 216:81D:103

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