Digium Asterisk 13.13.0 PJSIP Crafted Packet out-of-bounds

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

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Digium Asterisk 13.13.0. This vulnerability affects unknown code of the component PJSIP. Performing a manipulation as part of Crafted Packet results in out-of-bounds. This vulnerability is reported as CVE-2017-9359. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Digium Asterisk 13.13.0 (Communications System). This affects an unknown functionality of the component PJSIP. The manipulation as part of a Crafted Packet leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. The summary by CVE is:

The multi-part body parser in PJSIP, as used in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1, Certified Asterisk 13.13 before 13.13-cert4, and other products, allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted packet.

The bug was discovered 04/13/2017. The weakness was disclosed 06/02/2017 (Website). It is possible to read the advisory at downloads.asterisk.org. This vulnerability is uniquely identified as CVE-2017-9359. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 50 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 102373 (Debian DSA-3933-1 : pjproject - security update), which helps to determine the existence of the flaw in a target environment. It is running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176119 (Debian Security Update for pjproject (DSA 3933-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (102373) and SecurityFocus (BID 98578†). The entry VDB-101917 is pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / 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: 102373
Nessus Name: Debian DSA-3933-1 : pjproject - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53676
OpenVAS Name: Debian Security Advisory DSA 3933-1 (pjproject - 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

06/01/2017 🔍
04/13/2017 +17035 days 🔍
05/13/2017 +30 days 🔍
06/02/2017 +20 days 🔍
06/02/2017 +0 days 🔍
06/02/2017 +0 days 🔍
08/10/2017 +69 days 🔍
08/11/2017 +1 days 🔍
12/26/2020 +1233 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: downloads.asterisk.org
Researcher: Sandro Gauci
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-9359 (🔍)
GCVE (CVE): GCVE-0-2017-9359
GCVE (VulDB): GCVE-100-101907

OVAL: 🔍

SecurityFocus: 98578 - Multiple Asterisk Products Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 06/02/2017 14:37
Updated: 12/26/2020 08:40
Changes: 06/02/2017 14:37 (78), 12/17/2019 15:46 (5), 12/26/2020 08:40 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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