CWE-384
AllowedSession Fixation
Abstraction: Compound · Status: Incomplete
Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.
547 vulnerabilities reference this CWE, most recent first.
GHSA-32W7-9WHP-CJP9
Vulnerability from github – Published: 2018-11-29 21:30 – Updated: 2024-11-13 22:54The client in Tryton 5.x before 5.0.1 tries to make a connection to the bus in cleartext instead of encrypted under certain circumstances in bus.py and jsonrpc.py. This connection attempt fails, but it contains in the header the current session of the user. This session could then be stolen by a man-in-the-middle.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "tryton"
},
"ranges": [
{
"events": [
{
"introduced": "5.0.0"
},
{
"fixed": "5.0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.0.0"
]
}
],
"aliases": [
"CVE-2018-19443"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T20:53:42Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "The client in Tryton 5.x before 5.0.1 tries to make a connection to the bus in cleartext instead of encrypted under certain circumstances in bus.py and jsonrpc.py. This connection attempt fails, but it contains in the header the current session of the user. This session could then be stolen by a man-in-the-middle.",
"id": "GHSA-32w7-9whp-cjp9",
"modified": "2024-11-13T22:54:09Z",
"published": "2018-11-29T21:30:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-19443"
},
{
"type": "WEB",
"url": "https://bugs.tryton.org/issue7792"
},
{
"type": "WEB",
"url": "https://discuss.tryton.org/t/security-release-for-issue7792/830"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tryton/PYSEC-2018-77.yaml"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Session Fixation in Tryton"
}
GHSA-32XW-6G8C-RXJJ
Vulnerability from github – Published: 2022-05-24 17:37 – Updated: 2022-05-24 17:37IBM Financial Transaction Manager 3.0.6 and 3.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 183328.
{
"affected": [],
"aliases": [
"CVE-2020-4555"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-12-21T18:15:00Z",
"severity": "MODERATE"
},
"details": "IBM Financial Transaction Manager 3.0.6 and 3.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 183328.",
"id": "GHSA-32xw-6g8c-rxjj",
"modified": "2022-05-24T17:37:11Z",
"published": "2022-05-24T17:37:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-4555"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/183328"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/6388702"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/6388704"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/6388706"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/6388708"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/6388722"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/6388744"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-34VW-VVRJ-PR33
Vulnerability from github – Published: 2023-05-03 21:30 – Updated: 2024-04-04 03:47An issue has been discovered in GitLab affecting all versions starting from 11.9 before 15.9.6, all versions starting from 15.10 before 15.10.5, all versions starting from 15.11 before 15.11.1. The condition allows for a privileged attacker, under certain conditions, to obtain session tokens from all users of a GitLab instance.
{
"affected": [],
"aliases": [
"CVE-2023-1265"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-05-03T21:15:17Z",
"severity": "MODERATE"
},
"details": "An issue has been discovered in GitLab affecting all versions starting from 11.9 before 15.9.6, all versions starting from 15.10 before 15.10.5, all versions starting from 15.11 before 15.11.1. The condition allows for a privileged attacker, under certain conditions, to obtain session tokens from all users of a GitLab instance.",
"id": "GHSA-34vw-vvrj-pr33",
"modified": "2024-04-04T03:47:23Z",
"published": "2023-05-03T21:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1265"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/1888690"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-1265.json"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/394960"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-35W4-5HGF-F56Q
Vulnerability from github – Published: 2022-12-25 06:30 – Updated: 2024-04-04 03:17An issue was discovered in Simmeth Lieferantenmanager before 5.6. Due to errors in session management, an attacker can log back into a victim's account after the victim logged out - /LMS/LM/#main can be used for this. This is due to the credentials not being cleaned from the local storage after logout.
{
"affected": [],
"aliases": [
"CVE-2022-44017"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-25T05:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in Simmeth Lieferantenmanager before 5.6. Due to errors in session management, an attacker can log back into a victim\u0027s account after the victim logged out - /LMS/LM/#main can be used for this. This is due to the credentials not being cleaned from the local storage after logout.",
"id": "GHSA-35w4-5hgf-f56q",
"modified": "2024-04-04T03:17:28Z",
"published": "2022-12-25T06:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-44017"
},
{
"type": "WEB",
"url": "https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-simmeth-system-gmbh-lieferantenmanager"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-35X6-WG3H-RRV6
Vulnerability from github – Published: 2022-05-13 01:34 – Updated: 2022-05-13 01:34Session fixation vulnerability in SYNO.PhotoStation.Auth in Synology Photo Station before 6.8.7-3481 allows remote attackers to hijack web sessions via the PHPSESSID parameter.
{
"affected": [],
"aliases": [
"CVE-2018-13282"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-10-31T16:29:00Z",
"severity": "MODERATE"
},
"details": "Session fixation vulnerability in SYNO.PhotoStation.Auth in Synology Photo Station before 6.8.7-3481 allows remote attackers to hijack web sessions via the PHPSESSID parameter.",
"id": "GHSA-35x6-wg3h-rrv6",
"modified": "2022-05-13T01:34:45Z",
"published": "2022-05-13T01:34:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13282"
},
{
"type": "WEB",
"url": "https://www.synology.com/en-global/support/security/Synology_SA_18_37"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-376M-3RM2-9JM6
Vulnerability from github – Published: 2022-05-14 03:55 – Updated: 2023-02-14 00:46A vulnerability in ipsilon 2.0 before 2.0.2, 1.2 before 1.2.1, 1.1 before 1.1.2, and 1.0 before 1.0.3 was found that allows attacker to log out active sessions of other users. This issue is related to how it tracks sessions, and allows an unauthenticated attacker to view and terminate active sessions from other users. It is also called a "SAML2 multi-session vulnerability."
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "ipsilon"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.0.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "ipsilon"
},
"ranges": [
{
"events": [
{
"introduced": "1.2.0"
},
{
"fixed": "1.2.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "ipsilon"
},
"ranges": [
{
"events": [
{
"introduced": "1.1.0"
},
{
"fixed": "1.1.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "ipsilon"
},
"ranges": [
{
"events": [
{
"introduced": "1.0.0"
},
{
"fixed": "1.0.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2016-8638"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": true,
"github_reviewed_at": "2023-02-14T00:46:20Z",
"nvd_published_at": "2017-07-12T13:29:00Z",
"severity": "CRITICAL"
},
"details": "A vulnerability in ipsilon 2.0 before 2.0.2, 1.2 before 1.2.1, 1.1 before 1.1.2, and 1.0 before 1.0.3 was found that allows attacker to log out active sessions of other users. This issue is related to how it tracks sessions, and allows an unauthenticated attacker to view and terminate active sessions from other users. It is also called a \"SAML2 multi-session vulnerability.\"",
"id": "GHSA-376m-3rm2-9jm6",
"modified": "2023-02-14T00:46:20Z",
"published": "2022-05-14T03:55:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-8638"
},
{
"type": "WEB",
"url": "https://github.com/ipsilon-project/ipsilon/commit/1c48414877fc110652b6078a29529972c7ec9122"
},
{
"type": "WEB",
"url": "https://github.com/ipsilon-project/ipsilon/commit/64fc366c054fc6af1d9d2692902db169884b5f78"
},
{
"type": "WEB",
"url": "https://github.com/ipsilon-project/ipsilon/commit/a33303b6beb5c316d7c18b23566b7666a4e307a4"
},
{
"type": "WEB",
"url": "https://github.com/ipsilon-project/ipsilon/commit/b4744a92d4fa7f6d7ade0ae2d99a2dc0ea94734d"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2016:2809"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2016-8638"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1392829"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8638"
},
{
"type": "PACKAGE",
"url": "https://github.com/ipsilon-project/ipsilon"
},
{
"type": "WEB",
"url": "https://ipsilon-project.org/advisory/CVE-2016-8638.txt"
},
{
"type": "WEB",
"url": "https://ipsilon-project.org/release/2.1.0.html"
},
{
"type": "WEB",
"url": "https://pagure.io/ipsilon/c/511fa8b7001c2f9a42301aa1d4b85aaf170a461c"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2016-2809.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/94439"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Session Fixation in ipsilon"
}
GHSA-3F8R-X482-8QPG
Vulnerability from github – Published: 2024-02-10 00:31 – Updated: 2025-06-03 21:30Sametime is impacted by a failure to invalidate sessions. The application is setting sensitive cookie values in a persistent manner in Sametime Web clients. When this happens, cookie values can remain valid even after a user has closed out their session.
{
"affected": [],
"aliases": [
"CVE-2023-45718"
],
"database_specific": {
"cwe_ids": [
"CWE-384",
"CWE-613"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-09T22:15:08Z",
"severity": "LOW"
},
"details": "Sametime is impacted by a failure to invalidate sessions. The application is setting sensitive cookie values in a persistent manner in Sametime Web clients. When this happens, cookie values can remain valid even after a user has closed out their session. \u00a0",
"id": "GHSA-3f8r-x482-8qpg",
"modified": "2025-06-03T21:30:34Z",
"published": "2024-02-10T00:31:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45718"
},
{
"type": "WEB",
"url": "https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0109082"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-3FHF-6939-QG8P
Vulnerability from github – Published: 2018-08-13 20:47 – Updated: 2023-09-05 21:42REST client for Ruby (aka rest-client) versions 1.6.1.a until 1.8.0 allow remote attackers to conduct session fixation attacks or obtain sensitive cookie information by leveraging passage of cookies set in a response to a redirect.
{
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "rest-client"
},
"ranges": [
{
"events": [
{
"introduced": "1.6.1.a"
},
{
"fixed": "1.8.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2015-1820"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T20:54:58Z",
"nvd_published_at": null,
"severity": "CRITICAL"
},
"details": "REST client for Ruby (aka rest-client) versions 1.6.1.a until 1.8.0 allow remote attackers to conduct session fixation attacks or obtain sensitive cookie information by leveraging passage of cookies set in a response to a redirect.",
"id": "GHSA-3fhf-6939-qg8p",
"modified": "2023-09-05T21:42:43Z",
"published": "2018-08-13T20:47:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-1820"
},
{
"type": "WEB",
"url": "https://github.com/rest-client/rest-client/issues/369"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1205291"
},
{
"type": "PACKAGE",
"url": "https://github.com/rest-client/rest-client"
},
{
"type": "WEB",
"url": "https://rubygems.org/gems/rest-client/versions/1.6.1.a"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20200228080106/http://www.securityfocus.com/bid/73295"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2015/03/24/3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "rest-client Gem Vulnerable to Session Fixation"
}
GHSA-3FJR-H35G-VFC9
Vulnerability from github – Published: 2025-03-11 03:30 – Updated: 2025-03-11 03:30The Service Layer in SAP Business One, allows attackers to potentially gain unauthorized access and impersonate other users in the application to perform unauthorized actions. Due to the improper session management, the attackers can elevate themselves to higher privilege and can read, modify and/or write new data. To gain authenticated sessions of other users, the attacker must invest considerable time and effort. This vulnerability has a high impact on the confidentiality and integrity of the application with no effect on the availability of the application.
{
"affected": [],
"aliases": [
"CVE-2025-26658"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-11T01:15:35Z",
"severity": "MODERATE"
},
"details": "The Service Layer in SAP Business One, allows attackers to potentially gain unauthorized access and impersonate other users in the application to perform unauthorized actions. Due to the improper session management, the attackers can elevate themselves to higher privilege and can read, modify and/or write new data. To gain authenticated sessions of other users, the attacker must invest considerable time and effort. This vulnerability has a high impact on the confidentiality and integrity of the application with no effect on the availability of the application.",
"id": "GHSA-3fjr-h35g-vfc9",
"modified": "2025-03-11T03:30:50Z",
"published": "2025-03-11T03:30:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26658"
},
{
"type": "WEB",
"url": "https://me.sap.com/notes/3561045"
},
{
"type": "WEB",
"url": "https://url.sap/sapsecuritypatchday"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-3FV7-C5V3-XV9M
Vulnerability from github – Published: 2024-10-20 00:30 – Updated: 2024-10-20 00:30A vulnerability classified as problematic has been found in PHPGurukul Boat Booking System 1.0. Affected is the function session_start. The manipulation leads to session fixiation. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
{
"affected": [],
"aliases": [
"CVE-2024-10158"
],
"database_specific": {
"cwe_ids": [
"CWE-384"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-19T23:15:04Z",
"severity": "MODERATE"
},
"details": "A vulnerability classified as problematic has been found in PHPGurukul Boat Booking System 1.0. Affected is the function session_start. The manipulation leads to session fixiation. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.",
"id": "GHSA-3fv7-c5v3-xv9m",
"modified": "2024-10-20T00:30:35Z",
"published": "2024-10-20T00:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-10158"
},
{
"type": "WEB",
"url": "https://github.com/jadu101/CVE/blob/main/phpgurukul_boat_booking_system_session_fixation.md"
},
{
"type": "WEB",
"url": "https://phpgurukul.com"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.280944"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.280944"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.425414"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
Mitigation
Invalidate any existing session identifiers prior to authorizing a new user session.
Mitigation
For platforms such as ASP that do not generate new values for sessionid cookies, utilize a secondary cookie. In this approach, set a secondary cookie on the user's browser to a random value and set a session variable to the same value. If the session variable and the cookie value ever don't match, invalidate the session, and force the user to log on again.
Mitigation MIT-29
Strategy: Firewall
Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].
CAPEC-196: Session Credential Falsification through Forging
An attacker creates a false but functional session credential in order to gain or usurp access to a service. Session credentials allow users to identify themselves to a service after an initial authentication without needing to resend the authentication information (usually a username and password) with every message. If an attacker is able to forge valid session credentials they may be able to bypass authentication or piggy-back off some other authenticated user's session. This attack differs from Reuse of Session IDs and Session Sidejacking attacks in that in the latter attacks an attacker uses a previous or existing credential without modification while, in a forging attack, the attacker must create their own credential, although it may be based on previously observed credentials.
CAPEC-21: Exploitation of Trusted Identifiers
An adversary guesses, obtains, or "rides" a trusted identifier (e.g. session ID, resource ID, cookie, etc.) to perform authorized actions under the guise of an authenticated user or service.
CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies
This attack relies on the use of HTTP Cookies to store credentials, state information and other critical data on client systems. There are several different forms of this attack. The first form of this attack involves accessing HTTP Cookies to mine for potentially sensitive data contained therein. The second form involves intercepting this data as it is transmitted from client to server. This intercepted information is then used by the adversary to impersonate the remote user/session. The third form is when the cookie's content is modified by the adversary before it is sent back to the server. Here the adversary seeks to convince the target server to operate on this falsified information.
CAPEC-39: Manipulating Opaque Client-based Data Tokens
In circumstances where an application holds important data client-side in tokens (cookies, URLs, data files, and so forth) that data can be manipulated. If client or server-side application components reinterpret that data as authentication tokens or data (such as store item pricing or wallet information) then even opaquely manipulating that data may bear fruit for an Attacker. In this pattern an attacker undermines the assumption that client side tokens have been adequately protected from tampering through use of encryption or obfuscation.
CAPEC-59: Session Credential Falsification through Prediction
This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.
CAPEC-60: Reusing Session IDs (aka Session Replay)
This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.
CAPEC-61: Session Fixation
The attacker induces a client to establish a session with the target software using a session identifier provided by the attacker. Once the user successfully authenticates to the target software, the attacker uses the (now privileged) session identifier in their own transactions. This attack leverages the fact that the target software either relies on client-generated session identifiers or maintains the same session identifiers after privilege elevation.