CVE-2022-26157Network attack vector

Session identifier interception via missing Secure flag

Published Feb 28, 2022 · Updated Aug 3, 2024

Improper cookie protection in Cherwell Service Management 10.2.3 allows man-in-the-middle attackers to intercept session identifiers over HTTP. The web application sets ASP.NET_SessionId without the Secure attribute, so browsers can transmit the cookie over an unencrypted connection. Exploitation requires a victim session to traverse an attacker-observable HTTP channel and exposes the session identifier; no integrity or availability impact is reported.

CVSS severity5.3
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper cookie protection in Cherwell Service Management 10.2.3 allows man-in-the-middle attackers to intercept session identifiers over HTTP. The web application sets ASP.NET_SessionId without the Secure attribute, so browsers can transmit the cookie over an unencrypted connection. Exploitation requires a victim session to traverse an attacker-observable HTTP channel and exposes the session identifier; no integrity or availability impact is reported.

The record

CVE
CVE-2022-26157
Published
Feb 28, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-311, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-311Missing Encryption of Sensitive Data
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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