Multiple vulnerabilities in AT&T Labs Xmill and Schneider Electric EcoStruxure Control Expert
| Risk | High |
| Patch available | NO |
| Number of vulnerabilities | 6 |
| CVE-ID | CVE-2021-21829 CVE-2021-21828 CVE-2021-21827 CVE-2021-21826 CVE-2021-21830 CVE-2021-21825 |
| CWE-ID | CWE-122 CWE-119 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Xmill Other software / Other software solutions EcoStruxure Control Expert Server applications / SCADA systems |
| Vendor |
AT&T Labs Schneider Electric |
Security Bulletin
This security bulletin contains information about 6 vulnerabilities.
1) Heap-based buffer overflow
EUVDB-ID: #VU55798
Risk: High
CVSSv3.1: 7.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2021-21829
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the XML Decompression EnumerationUncompressor::UncompressItem functionality. A remote attacker can send a specially crafted XMI file, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsXmill: 0.7
EcoStruxure Control Expert: 15.0
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1292
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Buffer overflow
EUVDB-ID: #VU55803
Risk: High
CVSSv3.1: 7.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2021-21828
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the XML Decompression DecodeTreeBlock functionality within "Default case global". A remote attacker can send a specially crafted XMI File, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsXmill: 0.7
EcoStruxure Control Expert: 15.0
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1291
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Buffer overflow
EUVDB-ID: #VU55802
Risk: High
CVSSv3.1: 7.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2021-21827
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the XML Decompression DecodeTreeBlock functionality within "TREETOKEN_ATTRIBWHITESPACE". A remote attacker can send a specially crafted XMI File, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsXmill: 0.7
EcoStruxure Control Expert: 15.0
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1291
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Buffer overflow
EUVDB-ID: #VU55801
Risk: High
CVSSv3.1: 7.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2021-21826
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the XML Decompression DecodeTreeBlock functionality within "TREETOKEN_WHITESPACE". A remote attacker can send a specially crafted XMI File, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsXmill: 0.7
EcoStruxure Control Expert: 15.0
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1291
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) Heap-based buffer overflow
EUVDB-ID: #VU55800
Risk: High
CVSSv3.1: 7.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2021-21830
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the XML Decompression LabelDict::Load functionality. A remote attacker can send a specially crafted XMI file, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsXmill: 0.7
EcoStruxure Control Expert: 15.0
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1293
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
6) Heap-based buffer overflow
EUVDB-ID: #VU55799
Risk: High
CVSSv3.1: 7.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2021-21825
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the XML Decompression PlainTextUncompressor::UncompressItem functionality. A remote attacker can send a specially crafted XMI file, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsXmill: 0.7
EcoStruxure Control Expert: 15.0
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1290
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
