CVE & CISA-KEV Catalog

CVE-2022-27780

HIGHEPSS 80th pctl
7.5
CVSS v3
NVD

Description

The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and more.

How to fix

Remediation Available
curlDebian
Fixed in:7.83.1-1CVE-2022-27780
Fixed in:7.83.1-1CVE-2022-27780
Fixed in:7.83.1-1CVE-2022-27780
curlUbuntu
Fixed in:7.58.0-2ubuntu3.18USN-5412-1
Fixed in:7.68.0-1ubuntu2.11USN-5412-1
Fixed in:7.81.0-1ubuntu1.2USN-5412-1
libcurl3-gnutlsUbuntu
Fixed in:7.58.0-2ubuntu3.18USN-5412-1
Fixed in:7.68.0-1ubuntu2.11USN-5412-1
Fixed in:7.81.0-1ubuntu1.2USN-5412-1
libcurl3-nssUbuntu
Fixed in:7.58.0-2ubuntu3.18USN-5412-1
Fixed in:7.68.0-1ubuntu2.11USN-5412-1
Fixed in:7.81.0-1ubuntu1.2USN-5412-1
libcurl4Ubuntu
Fixed in:7.58.0-2ubuntu3.18USN-5412-1
Fixed in:7.68.0-1ubuntu2.11USN-5412-1
Fixed in:7.81.0-1ubuntu1.2USN-5412-1
UniversalForwarderWindows application
Affected:9.0.0 9.0.6Fixed in:9.0.6Splunk, Inc.
Affected:8.2.0 8.2.12Fixed in:8.2.12Splunk, Inc.

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityHigh
AvailabilityNone

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

Exploit Intelligence

2.19%probability of exploitation in 30 days
80thpercentile

Elevated risk: more likely to be exploited than 80% of all known CVEs.

References

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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.