Unrated severityNVD Advisory· Published Sep 14, 2021· Updated Aug 4, 2024
CVE-2021-37186
CVE-2021-37186
Description
A vulnerability has been identified in LOGO! CMR2020 (All versions < V2.2), LOGO! CMR2040 (All versions < V2.2), SIMATIC RTU3010C (All versions < V4.0.9), SIMATIC RTU3030C (All versions < V4.0.9), SIMATIC RTU3031C (All versions < V4.0.9), SIMATIC RTU3041C (All versions < V4.0.9). The underlying TCP/IP stack does not properly calculate the random numbers used as ISN (Initial Sequence Numbers). An adjacent attacker with network access to the LAN interface could interfere with traffic, spoof the connection and gain access to sensitive information.
Affected products
12<2.2+ 3 more
- (no CPE)range: <2.2
- (no CPE)range: <2.2
- (no CPE)range: All versions < V2.2
- (no CPE)range: All versions < V2.2
<4.0.9+ 1 more
- (no CPE)range: <4.0.9
- (no CPE)range: All versions < V4.0.9
<4.0.9+ 1 more
- (no CPE)range: <4.0.9
- (no CPE)range: All versions < V4.0.9
<4.0.9+ 1 more
- (no CPE)range: <4.0.9
- (no CPE)range: All versions < V4.0.9
<4.0.9+ 1 more
- (no CPE)range: <4.0.9
- (no CPE)range: All versions < V4.0.9
Patches
Vulnerability mechanics
References
1- cert-portal.siemens.com/productcert/pdf/ssa-316383.pdfmitrex_refsource_MISC
News mentions
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