Lucene search
K
Database
Vendors
Products
Years
CVSS
Scanner
Agent Scanning
API Scanning
Manual Audit
Perimeter Scanner
Scanning
Projects
Email
Webhook
Plugins
Resources
Documents
Blog
Glossary
FAQ
Pricing
Contacts
About Us
Partners
Branding Guideline
cve[email protected]CVE-2021-34473
HistoryJul 14, 2021 - 6:15 p.m.

CVE-2021-34473

2021-07-1418:15:11
CWE-918
[email protected]
web.nvd.nist.gov
1793
In Wild
48
microsoft
exchange server
remote code execution
vulnerability
cve-2021-34473

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

9.6 High

AI Score

Confidence

High

10 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

0.973 High

EPSS

Percentile

99.9%

JSON

Microsoft Exchange Server Remote Code Execution Vulnerability

Affected configurations

Vulners
NVD
Node
microsoftexchange_serverRange15.00.0–15.00.1497.015cumulative update 23
OR
microsoftexchange_serverRange15.02.0–15.02.0858.010cumulative update 9
OR
microsoftexchange_serverRange15.01.0–15.01.2242.008cumulative update 20
OR
microsoftexchange_serverRange15.01.0–15.01.2176.012cumulative update 19
OR
microsoftexchange_serverRange15.02.0–15.02.0792.013cumulative update 8
VendorProductVersionCPE
microsoftexchange_server*cpe:2.3:a:microsoft:exchange_server:*:cumulative update 23:*:*:*:*:*:*
microsoftexchange_server*cpe:2.3:a:microsoft:exchange_server:*:cumulative update 9:*:*:*:*:*:*
microsoftexchange_server*cpe:2.3:a:microsoft:exchange_server:*:cumulative update 20:*:*:*:*:*:*
microsoftexchange_server*cpe:2.3:a:microsoft:exchange_server:*:cumulative update 19:*:*:*:*:*:*
microsoftexchange_server*cpe:2.3:a:microsoft:exchange_server:*:cumulative update 8:*:*:*:*:*:*

CNA Affected

[
  {
    "vendor": "Microsoft",
    "product": "Microsoft Exchange Server 2013 Cumulative Update 23",
    "cpes": [
      "cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "15.00.0",
        "lessThan": "15.00.1497.015",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Exchange Server 2019 Cumulative Update 9",
    "cpes": [
      "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "15.02.0",
        "lessThan": "15.02.0858.010",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Exchange Server 2016 Cumulative Update 20",
    "cpes": [
      "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "15.01.0",
        "lessThan": "15.01.2242.008",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Exchange Server 2016 Cumulative Update 19",
    "cpes": [
      "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "15.01.0",
        "lessThan": "15.01.2176.012",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Exchange Server 2019 Cumulative Update 8",
    "cpes": [
      "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "15.02.0",
        "lessThan": "15.02.0792.013",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]

Social References

More

Related

zdi 1
nvd 1
cisa_kev 1
hivepro 8
prion 1
githubexploit 8
mscve 1
cvelist 1
attackerkb 2
checkpoint_advisories 1
malwarebytes 6
packetstorm 1
msrc 2
thn 10
threatpost 8
rapid7blog 6
trellix 2
metasploit 1
zdt 1
impervablog 1
fireeye 1
cisa 1
pentestpartners 1
ics 5
nuclei 1
qualysblog 7
securelist 3
mmpc 2
kaspersky 1
mskb 1
nessus 1
krebs 1
mssecure 1
avleonov 2
zdi
zdi
(Pwn2Own) Microsoft Exchange Server Autodiscover Server Side Request Forgery Authentication Bypass Vulnerability
2021-07-19 00:00:00
nvd
nvd
CVE-2021-34473
2021-07-14 18:15:11
cisa_kev
cisa_kev
Microsoft Exchange Server Remote Code Execution Vulnerability
2021-11-03 00:00:00
hivepro
hivepro
MuddyWater is taking advantage of old vulnerabilities
2021-11-18 11:45:32
Hive Ransomware targets organizations with ProxyShell exploit
2022-04-22 14:34:47
BlackByte ransomware exploits Microsoft Servers ProxyShell Vulnerabilities
2021-12-07 13:24:49
prion
prion
Remote code execution
2021-07-14 18:15:00
githubexploit
githubexploit
Exploit for Server-Side Request Forgery in Microsoft
2021-08-11 12:20:07
Exploit for Server-Side Request Forgery in Microsoft
2021-08-16 11:27:13
Exploit for Server-Side Request Forgery in Microsoft
2022-11-16 08:22:29
mscve
mscve
Microsoft Exchange Server Remote Code Execution Vulnerability
2021-07-13 07:00:00
cvelist
cvelist
CVE-2021-34473 Microsoft Exchange Server Remote Code Execution Vulnerability
2021-07-14 17:54:03
attackerkb
attackerkb
CVE-2021-34473
2021-07-14 00:00:00
ProxyShell Exploit Chain
2023-12-28 00:00:00
checkpoint_advisories
checkpoint_advisories
Microsoft Exchange Server Remote Code Execution (CVE-2021-34473; CVE-2021-34523)
2021-07-14 00:00:00
malwarebytes
malwarebytes
Patch now! Microsoft Exchange is being attacked via ProxyShell
2021-08-23 13:21:08
IIS extensions are on the rise as backdoors to servers
2022-07-27 13:58:06
AvosLocker ransomware uses Microsoft Exchange Server vulnerabilities, says FBI
2022-03-21 21:09:12
packetstorm
packetstorm
Microsoft Exchange ProxyShell Remote Code Execution
2021-08-20 00:00:00
msrc
msrc
April 2021 Update Tuesday packages now available
2021-04-13 07:00:00
April 2021 Update Tuesday packages now available
2021-04-13 07:00:00
thn
thn
New Incident Report Reveals How Hive Ransomware Targets Organizations
2022-04-21 10:00:00
Hackers Exploiting ProxyLogon and ProxyShell Flaws in Spam Campaigns
2021-11-22 11:47:00
WARNING: Microsoft Exchange Under Attack With ProxyShell Flaws
2021-08-22 09:51:00
threatpost
threatpost
IKEA Hit by Email Reply-Chain Cyberattack
2021-11-29 21:22:12
Attackers Hijack Email Using Proxy Logon/Proxyshell Flaws
2021-11-22 19:26:25
Microsoft Breaks Silence on Barrage of ProxyShell Attacks
2021-08-26 12:39:54
rapid7blog
rapid7blog
For Microsoft Exchange Server Vulnerabilities, Patching Remains Patchy
2021-10-06 14:07:12
Metasploit Wrap-Up
2021-08-20 19:12:00
ProxyShell: More Widespread Exploitation of Microsoft Exchange Servers
2021-08-12 21:08:43
trellix
trellix
Trellix Global Defenders: Analysis and Protections for BlackByte Ransomware
2022-02-28 00:00:00
Trellix Global Defenders: Analysis and Protections for BlackByte Ransomware
2022-02-28 00:00:00
metasploit
metasploit
Microsoft Exchange ProxyShell RCE
2021-08-18 14:50:34
zdt
zdt
Microsoft Exchange ProxyShell Remote Code Execution Exploit
2021-08-21 00:00:00
impervablog
impervablog
Microsoft Exchange Server Vulnerabilities CVE-2022-41040 and CVE-2022-41082
2022-09-30 16:47:34
fireeye
fireeye
PST, Want a Shell? ProxyShell Exploiting Microsoft Exchange Servers
2021-09-03 10:00:00
cisa
cisa
Urgent: Protect Against Active Exploitation of ProxyShell Vulnerabilities
2021-08-21 00:00:00
pentestpartners
pentestpartners
Hive Ransomware is on the rise. How should you deal with it?
2022-11-18 06:44:42
ics
ics
Iranian Government-Sponsored APT Cyber Actors Exploiting Microsoft Exchange and Fortinet Vulnerabilities in Furtherance of Malicious Activities
2021-11-19 12:00:00
#StopRansomware: Hive Ransomware
2022-11-25 12:00:00
Iranian Islamic Revolutionary Guard Corps-Affiliated Cyber Actors Exploiting Vulnerabilities for Data Extortion and Disk Encryption for Ransom Operations
2022-09-14 12:00:00
nuclei
nuclei
Exchange Server - Remote Code Execution
2021-08-10 07:59:06
qualysblog
qualysblog
AvosLocker Ransomware Behavior Examined on Windows & Linux
2022-03-07 05:18:46
Qualys Tackles 2022’s Top Routinely Exploited Cyber Vulnerabilities
2023-08-24 19:07:05
CISA Alert: Top 15 Routinely Exploited Vulnerabilities
2022-05-06 12:19:24
securelist
securelist
CVE-2022-41040 and CVE-2022-41082 – zero-days in MS Exchange
2022-12-19 16:15:49
From Caribbean shores to your devices: analyzing Cuba ransomware
2023-09-11 10:00:26
IT threat evolution in Q3 2021. PC statistics
2021-11-26 12:00:36
mmpc
mmpc
The five-day job: A BlackByte ransomware intrusion case study
2023-07-06 17:00:00
Guidance for preventing, detecting, and hunting for exploitation of the Log4j 2 vulnerability
2021-12-12 05:29:03
kaspersky
kaspersky
KLA12224 Multiple vulnerabilities in Microsoft Exchange Server
2021-07-13 00:00:00
mskb
mskb
Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: April 13, 2021 (KB5001779)
2021-07-13 07:00:00
nessus
nessus
Security Updates for Microsoft Exchange Server (April 2021)
2021-04-13 00:00:00
krebs
krebs
Microsoft Patch Tuesday, July 2021 Edition
2021-07-13 21:41:47
mssecure
mssecure
Guidance for preventing, detecting, and hunting for exploitation of the Log4j 2 vulnerability
2021-12-12 05:29:03
avleonov
avleonov
Security News: Exchange ProxyShell, Zoom RCE, Citrix Canceled PT Acknowledgments, Cisco No Patch Router RCEs
2021-08-31 23:16:51
Vulnerability Management news and publications #2
2022-08-14 11:30:44

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

9.6 High

AI Score

Confidence

High

10 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

0.973 High

EPSS

Percentile

99.9%

JSON
Related for CVE-2021-34473
zdi1nvd1cisa_kev1hivepro8prion1githubexploit8mscve1cvelist1attackerkb2checkpoint_advisories1malwarebytes6packetstorm1msrc2thn10threatpost8rapid7blog6trellix2metasploit1zdt1impervablog1fireeye1cisa1pentestpartners1ics5nuclei1qualysblog7securelist3mmpc2kaspersky1mskb1nessus1krebs1mssecure1avleonov2