A vulnerability has been identified in SIMATIC ET 200AL IM 157-1 PN (6ES7157-1AB00-0AB0) (All versions), SIMATIC ET 200MP IM 155-5 PN HF (6E
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in V1.3, V6.0.1, V4.2.5, V4.2.2, V6.0.0
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
A vulnerability has been identified in SIMATIC ET 200AL IM 157-1 PN (6ES7157-1AB00-0AB0) (All versions), SIMATIC ET 200MP IM 155-5 PN HF (6ES7155-5AA00-0AC0) (All versions >= V4.2.0), SIMATIC ET 200SP IM 155-6 MF HF (6ES7155-6MU00-0CN0) (All versions), SIMATIC ET 200SP IM 155-6 PN HA (incl. SIPLUS variants) (All versions < V1.3), SIMATIC ET 200SP IM 155-6 PN R1 (6ES7155-6AU00-0HM0) (All versions < V6.0.1), SIMATIC ET 200SP IM 155-6 PN/2 HF (6ES7155-6AU01-0CN0) (All versions >= V4.2.0 < V4.2.5), SIMATIC ET 200SP IM 155-6 PN/3 HF (6ES7155-6AU30-0CN0) (All versions < V4.2.2), SIMATIC PN/MF Coupler (6ES7158-3MU10-0XA0) (All versions), SIMATIC PN/PN Coupler (6ES7158-3AD10-0XA0) (All versions < V6.0.0), SIPLUS ET 200MP IM 155-5 PN HF (6AG1155-5AA00-2AC0) (All versions >= V4.2.0), SIPLUS ET 200MP IM 155-5 PN HF (6AG1155-5AA00-7AC0) (All versions >= V4.2.0), SIPLUS ET 200MP IM 155-5 PN HF T1 RAIL (6AG2155-5AA00-1AC0) (All versions >= V4.2.0), SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU01-2CN0) (All versions >= V4.2.0 < V4.2.5), SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU01-7CN0) (All versions >= V4.2.0 < V4.2.5), SIPLUS ET 200SP IM 155-6 PN HF T1 RAIL (6AG2155-6AU01-1CN0) (All versions >= V4.2.0 < V4.2.5), SIPLUS ET 200SP IM 155-6 PN HF TX RAIL (6AG2155-6AU01-4CN0) (All versions >= V4.2.0 < V4.2.5), SIPLUS NET PN/PN Coupler (6AG2158-3AD10-4XA0) (All versions < V6.0.0). Affected devices do not properly handle S7 protocol session disconnect requests. When receiving a valid S7 protocol Disconnect Request (COTP DR TPDU) on TCP port 102, the devices enter an improper session state. This could allow an attacker to cause the device to become unresponsive, leading to a denial-of-service condition that requires a power cycle to restore normal operation.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Siemens SIMATIC ET 200AL IM 157-1 PN
All versions
- Siemens SIMATIC ET 200MP IM 155-5 PN HF
From V4.2.0
- Siemens SIMATIC ET 200SP IM 155-6 MF HF
All versions
- Siemens SIMATIC ET 200SP IM 155-6 PN HA (incl. SIPLUS variants)
fixed in V1.3
- Siemens SIMATIC ET 200SP IM 155-6 PN R1
fixed in V6.0.1
- Siemens SIMATIC ET 200SP IM 155-6 PN/2 HF
From V4.2.0 · fixed in V4.2.5
- Siemens SIMATIC ET 200SP IM 155-6 PN/3 HF
fixed in V4.2.2
- Siemens SIMATIC PN/MF Coupler
All versions
- Siemens SIMATIC PN/PN Coupler
fixed in V6.0.0
- Siemens SIPLUS ET 200MP IM 155-5 PN HF
From V4.2.0
- Siemens SIPLUS ET 200MP IM 155-5 PN HF
From V4.2.0
- Siemens SIPLUS ET 200MP IM 155-5 PN HF T1 RAIL
From V4.2.0
- Siemens SIPLUS ET 200SP IM 155-6 PN HF
From V4.2.0 · fixed in V4.2.5
- Siemens SIPLUS ET 200SP IM 155-6 PN HF
From V4.2.0 · fixed in V4.2.5
- Siemens SIPLUS ET 200SP IM 155-6 PN HF T1 RAIL
From V4.2.0 · fixed in V4.2.5
- Siemens SIPLUS ET 200SP IM 155-6 PN HF TX RAIL
From V4.2.0 · fixed in V4.2.5
- Siemens SIPLUS NET PN/PN Coupler
fixed in V6.0.0