CVE-2022-24463
published 2022-03-09CVE-2022-24463: Microsoft Exchange Server Spoofing Vulnerability Microsoft Exchange Server Spoofing Vulnerability
medium6.5CVSS 3.1
AVNACLPRLUINSUCHINAN
ITWVulnCheck KEV
Exploited in the wild
EPSS
31.79%
98.1th percentile
Microsoft Exchange Server Spoofing Vulnerability
Microsoft Exchange Server Spoofing Vulnerability
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | microsoft_exchange_server_2016_cumulative_update_21 | >= 15.01.0 < 15.01.2308.027 | 15.01.2308.027 |
| microsoft | microsoft_exchange_server_2016_cumulative_update_22 | >= 15.0.0 < 15.01.2375.024 | 15.01.2375.024 |
| microsoft | microsoft_exchange_server_2019_cumulative_update_10 | >= 15.02.0 < 15.02.0922.027 | 15.02.0922.027 |
| microsoft | microsoft_exchange_server_2019_cumulative_update_11 | >= 15.02.0 < 15.02.0986.022 | 15.02.0986.022 |
| msrc | microsoft_exchange_server_2016_cumulative_update_21 | — | — |
| msrc | microsoft_exchange_server_2016_cumulative_update_22 | — | — |
| msrc | microsoft_exchange_server_2019_cumulative_update_10 | — | — |
| msrc | microsoft_exchange_server_2019_cumulative_update_11 | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Attacker sends a specially crafted network call to the target Exchange Server that causes parsing of an HTTP request made to an attacker-controlled server — monitor Exchange Server outbound HTTP requests to unexpected/external destinations as a sign of exploitation. ↗
- →Exploitation results in disclosure of file content from the Exchange Server — monitor for unexpected file reads or access to sensitive Exchange files following inbound authenticated network calls. ↗
- →Requires low-privilege authenticated access to Exchange Server — correlate with authenticated (low-privilege) user activity on Exchange Server preceding any anomalous outbound HTTP connections. ↗
- ·Exploitation is assessed as 'Less Likely' for both latest and older software releases as of the advisory publication date; no public exploits or in-the-wild exploitation confirmed. ↗
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:P/I:N/A:N
cvelistv56.5MEDIUM
vulncheck6.5MEDIUM
vendor_msrc6.5MEDIUM
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CVEList
Microsoft Exchange Server Spoofing Vulnerability
cvelistv5·2022-03-09·CVSS 6.5
CVE-2022-24463 [MEDIUM] Microsoft Exchange Server Spoofing Vulnerability
Microsoft Exchange Server Spoofing Vulnerability
Microsoft Exchange Server Spoofing Vulnerability
VulnCheck
Microsoft Exchange Server Spoofing Vulnerability
vulncheck·2022·CVSS 6.5
CVE-2022-24463 [MEDIUM] Microsoft Exchange Server Spoofing Vulnerability
Microsoft Exchange Server Spoofing Vulnerability
Microsoft Exchange Server Spoofing Vulnerability
Affected: Microsoft Exchange Server
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://www.fortinet.com/content/dam/fortinet/assets/threat-reports/threat-landscape-report-2h-2023.pdf
Microsoft
Microsoft Exchange Server Spoofing Vulnerability
vendor_msrc·2022-03-08·CVSS 6.5
CVE-2022-24463 [MEDIUM] Microsoft Exchange Server Spoofing Vulnerability
Microsoft Exchange Server Spoofing Vulnerability
FAQ: According to the CVSS metric, privileges required is low (PR:L). Does the attacker need to be in an authenticated role on the Exchange Server?
Yes, the attacker must be authenticated.
FAQ: What is the nature of the spoofing?
An authenticated attacker could make a specially crafted network call to the target Exchange Server that causes the parsing of an http request made to an attacker-controlled server. This could lead to the disclosure of files from the target Exchange Server.
FAQ: What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is file content.
Microsoft Exchange Server: Microsoft Exchange Server
Microsoft:
No detection rules found.
No public exploits indexed.
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2022-03-09
Published
Exploited in the wild