CVE-2020-15806 : CODESYS Control runtime system before 3.5.16.10 allows Uncontrolled Memory Alloc

Products affected by CVE-2020-15806

Codesys » Control For Beaglebone
Versions before (<) 3.5.16.10
cpe:2.3:a:codesys:control_for_beaglebone:*:*:*:*:*:*:*:*
Matching versions
Codesys » Control For Empc-a/imx6
Versions before (<) 3.5.16.10
cpe:2.3:a:codesys:control_for_empc-a\/imx6:*:*:*:*:*:*:*:*
Matching versions
Codesys » Control For Iot2000
Versions before (<) 3.5.16.10
cpe:2.3:a:codesys:control_for_iot2000:*:*:*:*:*:*:*:*
Matching versions
Codesys » Control For Pfc100
Versions before (<) 3.5.16.10
cpe:2.3:a:codesys:control_for_pfc100:*:*:*:*:*:*:*:*
Matching versions
Codesys » Control For Pfc200
Versions before (<) 3.5.16.10
cpe:2.3:a:codesys:control_for_pfc200:*:*:*:*:*:*:*:*
Matching versions
Codesys » Control For Raspberry Pi
Versions before (<) 3.5.16.10
cpe:2.3:a:codesys:control_for_raspberry_pi:*:*:*:*:*:*:*:*
Matching versions
Codesys » Control Rte » For Beckhoff Cx
Versions from including (>=) 3.5.8.60 and before (<) 3.5.16.10
cpe:2.3:a:codesys:control_rte:*:*:*:*:*:beckhoff_cx:*:*
Matching versions
Codesys » Control Rte »
Versions from including (>=) 3.5.8.60 and before (<) 3.5.16.10
cpe:2.3:a:codesys:control_rte:*:*:*:*:*:-:*:*
Matching versions
Codesys » Control Win
Versions from including (>=) 3.5.9.80 and before (<) 3.5.16.10
cpe:2.3:a:codesys:control_win:*:*:*:*:*:*:*:*
Matching versions
Codesys » Control Runtime System Toolkit
Versions from including (>=) 3.0 and before (<) 3.5.16.10
cpe:2.3:a:codesys:control_runtime_system_toolkit:*:*:*:*:*:*:*:*
Matching versions
Codesys » HMI
Versions from including (>=) 3.5.10.0 and before (<) 3.5.16.10
cpe:2.3:a:codesys:hmi:*:*:*:*:*:*:*:*
Matching versions
Codesys » Control For Linux
Versions before (<) 3.5.16.10
cpe:2.3:a:codesys:control_for_linux:*:*:*:*:*:*:*:*
Matching versions
Codesys » Embedded Target Visu Toolkit
Versions from including (>=) 3.0 and before (<) 3.5.16.10
cpe:2.3:a:codesys:embedded_target_visu_toolkit:*:*:*:*:*:*:*:*
Matching versions
Codesys » Remote Target Visu Toolkit
Versions from including (>=) 3.0 and before (<) 3.5.16.10
cpe:2.3:a:codesys:remote_target_visu_toolkit:*:*:*:*:*:*:*:*
Matching versions
Codesys » Control For Plcnext
Versions before (<) 3.5.16.10
cpe:2.3:a:codesys:control_for_plcnext:*:*:*:*:*:*:*:*
Matching versions
Codesys » Simulation Runtime
Versions from including (>=) 3.5.9.40 and before (<) 3.5.16.10
cpe:2.3:a:codesys:simulation_runtime:*:*:*:*:*:*:*:*
Matching versions
Codesys » Control For Wago Touch Panels 600
Versions before (<) 3.5.16.10
cpe:2.3:a:codesys:control_for_wago_touch_panels_600:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-15806

EPSS FAQ

0.45%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 72 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-15806

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2020-15806

CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-15806

https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=13199&token=3e283c3e73fed61f7c181a7fa1169477efaf0c58&download=

Mitigation;Vendor Advisory
https://www.codesys.com

CODESYS - CODESYS
Vendor Advisory

CVEs referencing this url
https://www.tenable.com/security/research/tra-2020-46

CODESYS V3 Unauthenticated Webserver Memory Leak DoS - Research Advisory | Tenable®
Exploit;Third Party Advisory

Vulnerability Details : CVE-2020-15806

Products affected by CVE-2020-15806

Exploit prediction scoring system (EPSS) score for CVE-2020-15806

CVSS scores for CVE-2020-15806

CWE ids for CVE-2020-15806

References for CVE-2020-15806