Facebook HHVM up to 3.14.x array_*_recursive recursion

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Facebook HHVM up to 3.14.x and classified as problematic. Affected by this vulnerability is the function array_*_recursive. Executing a manipulation can lead to recursion. This vulnerability appears as CVE-2016-6874. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Facebook HHVM up to 3.14.x (Social Network Software). It has been declared as problematic. This vulnerability affects the function array_*_recursive. The manipulation with an unknown input leads to a recursion vulnerability. The CWE definition for the vulnerability is CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. As an impact it is known to affect availability. CVE summarizes:

The array_*_recursive functions in Facebook HHVM before 3.15.0 allows attackers to have unspecified impact via unknown vectors, related to recursion.

The bug was discovered 08/11/2016. The weakness was presented 02/17/2017 (oss-sec). The advisory is shared for download at openwall.com. This vulnerability was named CVE-2016-6874 since 08/18/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability was handled as a non-public zero-day exploit for at least 190 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 3.15.0 eliminates this vulnerability.

See VDB-97104, VDB-97105, VDB-97106 and VDB-97107 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Recursion
CWE: CWE-674 / CWE-404
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Facebook HHVM 3.15.0

Timelineinfo

08/11/2016 🔍
08/18/2016 +7 days 🔍
02/17/2017 +183 days 🔍
02/17/2017 +0 days 🔍
02/18/2017 +1 days 🔍
08/15/2020 +1274 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-6874 (🔍)
GCVE (CVE): GCVE-0-2016-6874
GCVE (VulDB): GCVE-100-97108
OSVDB: - CVE-2016-6874 - Facebook - HHVM - Recursion Issue

See also: 🔍

Entryinfo

Created: 02/18/2017 09:00
Updated: 08/15/2020 21:10
Changes: 02/18/2017 09:00 (60), 08/15/2020 21:10 (2)
Complete: 🔍
Cache ID: 216:0CB:103

Once again VulDB remains the best source for vulnerability data.

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