Moog EXVF5C-2/EXVP7C2-3 Administration Console ${IFS} os command injection

CVSS Meta Temp Score
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CTI Interest Score
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9.8$0-$5k0.00

A vulnerability was found in Moog EXVF5C-2 and EXVP7C2-3 (version unknown). It has been declared as very critical. Affected by this vulnerability is an unknown function of the component Administration Console. The manipulation of the argument ${IFS} with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The administration console of the Moog EXO Series EXVF5C-2 and EXVP7C2-3 units features a 'statusbroadcast' command that can spawn a given process repeatedly at a certain time interval as 'root'. One of the limitations of this feature is that it only takes a path to a binary without arguments; however, this can be circumvented using special shell variables, such as '${IFS}'. As a result, an attacker can execute arbitrary commands as 'root' on the units.

The weakness was presented 08/21/2020. This vulnerability is known as CVE-2020-24054 since 08/13/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/22/2020). MITRE ATT&CK project uses the attack technique T1202 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See 160152, 160151 and 160150 for similar entries.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.8

VulDB Base Score: 9.8
VulDB Temp Score: 9.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-74 / CWE-707
ATT&CK: T1202

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/13/2020 🔍
08/21/2020 +8 days 🔍
08/22/2020 +1 days 🔍
08/22/2020 +0 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-24054 (🔍)
See also: 🔍

Entryinfo

Created: 08/22/2020 09:09
Updated: 08/22/2020 09:14
Changes: 08/22/2020 09:09 (36), 08/22/2020 09:14 (17)
Complete: 🔍

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