High severity · published Dec 11, 2020
CVE-2020-7535
A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal' Vulnerability Type) vulnerability exists in the Web Server on Modicon M340, Legacy Offers…
7.5
CVSS
1.5%
EPSS
No
On KEV
Description
A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal' Vulnerability Type) vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions), that could cause disclosure of information when sending a specially crafted request to the controller over HTTP.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
1F
140cpu65150 Firmware · Schneider-electric
All versions, or not specified · source: NVD
1F
140cpu65160 Firmware · Schneider-electric
All versions, or not specified · source: NVD
1F
140noc77101 Firmware · Schneider-electric
All versions, or not specified · source: NVD
1F
140noc78000 Firmware · Schneider-electric
All versions, or not specified · source: NVD
1F
140noc78100 Firmware · Schneider-electric
All versions, or not specified · source: NVD
1F
140noe77101 Firmware · Schneider-electric
before 7.3 · source: NVD
1F
140noe77111 Firmware · Schneider-electric
before 7.3 · source: NVD
BF
Bmxnoe0100 Firmware · Schneider-electric
before 3.4 · source: NVD
BF
Bmxnoe0110 Firmware · Schneider-electric
before 6.6 · source: NVD
MM
Modicon M340 Bmxp341000 Firmware · Schneider-electric
before 3.30 · source: NVD
MM
Modicon M340 Bmxp342000 Firmware · Schneider-electric
before 3.30 · source: NVD
MM
Modicon M340 Bmxp3420102 Firmware · Schneider-electric
before 3.30 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7535
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-7535
Vendor Advisory
https://www.se.com/ww/en/download/document/SEVD-2020-343-05/
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