FreeRADIUS up to 2.2.9 fr_dhcp_decode_options memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in FreeRADIUS up to 2.2.9 and classified as problematic. This issue affects the function fr_dhcp_decode_options. Performing a manipulation results in memory corruption. This vulnerability is identified as CVE-2017-10982. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in FreeRADIUS up to 2.2.9 (Network Authentication Software). This affects the function fr_dhcp_decode_options. 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 availability. The summary by CVE is:

An FR-GV-205 issue in FreeRADIUS 2.x before 2.2.10 allows "DHCP - Buffer over-read in fr_dhcp_decode_options()" and a denial of service.

The bug was discovered 06/18/2017. The weakness was released 07/17/2017 by Guido Vranken (Website). The advisory is shared at freeradius.org. This vulnerability is uniquely identified as CVE-2017-10982 since 07/06/2017. 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 are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 29 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 101823 (CentOS 6 : freeradius (CESA-2017:1759)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236394 (Red Hat Update for freeradius (RHSA-2017:1759)).

Upgrading to version 2.2.10 eliminates this vulnerability. A possible mitigation has been published 2 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (101823), SecurityFocus (BID 99912†) and SecurityTracker (ID 1038914†). Entries connected to this vulnerability are available at VDB-103697, VDB-103698, VDB-103699 and VDB-103700. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

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: 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: 101823
Nessus Name: CentOS 6 : freeradius (CESA-2017:1759)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53676
OpenVAS Name: Debian Security Advisory DSA 3930-1 (freeradius - 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: 🔍

Upgrade: FreeRADIUS 2.2.10

Timelineinfo

06/18/2017 🔍
07/06/2017 +18 days 🔍
07/17/2017 +11 days 🔍
07/17/2017 +0 days 🔍
07/18/2017 +1 days 🔍
07/18/2017 +0 days 🔍
07/18/2017 +0 days 🔍
07/19/2017 +1 days 🔍
07/20/2017 +1 days 🔍
12/13/2022 +1972 days 🔍

Sourcesinfo

Advisory: RHSA-2017:1759
Researcher: Guido Vranken
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-10982 (🔍)
GCVE (CVE): GCVE-0-2017-10982
GCVE (VulDB): GCVE-100-103701

OVAL: 🔍

SecurityFocus: 99912 - FreeRADIUS CVE-2017-10982 Denial of Service Vulnerability
SecurityTracker: 1038914

See also: 🔍

Entryinfo

Created: 07/18/2017 10:57
Updated: 12/13/2022 08:02
Changes: 07/18/2017 10:57 (81), 10/31/2019 06:23 (6), 12/13/2022 08:02 (4)
Complete: 🔍
Cache ID: 216::103

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