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CVE-2017-17476

Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0...

8.8 HighFix available

Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might allow remote attackers to hijack web sessions and consequently gain privileges via a crafted email.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.22%Up 0.3 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might allow remote attackers to hijack web sessions and consequently gain privileges via a crafted email.

Record
CVE-2017-17476
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-200
Updated
2026-11-02
CVE List No score

Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might allow remote attackers to hijack web sessions and consequently gain privileges via a crafted email.

Record
CVE-2017-17476
Updated
2026-11-02
EUVDEUVD-2017-8638 No score

Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might allow remote attackers to hijack web sessions and consequently gain privileges via a crafted email.

Record
EUVD-2017-8638
Updated
2026-11-03
GitHub AdvisoriesGHSA-q5mp-v3f3-grhm 8.8

Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0...

Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might allow remote attackers to hijack web sessions and consequently gain privileges via a crafted email.

Record
GHSA-q5mp-v3f3-grhm
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-200
Updated
2026-11-02
OSV 8.8

Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might allow remote attackers to hijack web sessions and consequently gain privileges via a crafted email.

Record
CVE-2017-17476
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2017-17476 8.8

Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might allow remote attackers to hijack web sessions and consequently gain privileges via a crafted email.

Record
DEBIAN-CVE-2017-17476
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2017-17476 8.8

Open Ticket Request System (OTRS) 4.0.x before 4.0.28, 5.0.x before 5.0.26, and 6.0.x before 6.0.3, when cookie support is disabled, might allow remote attackers to hijack web sessions and consequently gain privileges via a crafted email.

Record
UBUNTU-CVE-2017-17476
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
otrs2
Debian:11
 before 6.0.3-1, plus listed versions
2.0.4p01-102.0.4p01-112.0.4p01-122.0.4p01-132.0.4p01-14
Show 45 moreShow less
2.0.4p01-14.12.0.4p01-152.0.4p01-162.0.4p01-172.0.4p01-182.0.4p01-62.0.4p01-72.0.4p01-82.0.4p01-92.0.99beta1-12.0.99beta1-22.1.1-12.1.3-12.1.4-12.1.4-22.1.5-12.1.5-22.1.5-32.1.6-12.1.7-12.1.7-22.2.0~beta2-12.2.0~beta3-12.2.1-12.2.2-12.2.3-12.2.4-12.2.5-12.2.5-22.2.6-12.2.7-12.2.7-22.2.7-2lenny12.2.7-2lenny22.2.7-2lenny32.2.7-32.3.2-12.3.2-22.3.3-12.3.4-12.3.4-22.3.4-32.3.4-42.3.4-52.3.4-6
6.0.3-1
otrs2
Debian:7
 before 3.3.18-1~deb7u3, plus listed versions
3.1.10+dfsg1-13.1.11+dfsg1-13.1.12+dfsg1-13.1.12+dfsg1-23.1.12+dfsg1-3
Show 45 moreShow less
3.1.7+dfsg1-83.1.7+dfsg1-8+deb7u13.1.7+dfsg1-8+deb7u23.1.7+dfsg1-8+deb7u33.1.7+dfsg1-8+deb7u43.1.7+dfsg1-8+deb7u53.1.7+dfsg1-8+deb7u63.1.8+dfsg1-13.1.9+dfsg1-13.2.1+dfsg1-13.2.10-13.2.10-23.2.11-13.2.11-1~bpo70+13.2.12-13.2.2+dfsg1-13.2.3+dfsg1-13.2.4-13.2.5-13.2.6-13.2.6-23.2.7-13.2.7-23.2.8-13.2.9-13.2.9-23.3.1-13.3.10-13.3.11-13.3.18-1~deb7u13.3.18-1~deb7u23.3.2-13.3.3-13.3.3-23.3.3-33.3.4-13.3.5-13.3.6-13.3.7-13.3.7-23.3.8-13.3.9-13.3.9-23.3.9-33.3.9-3~bpo70+1
3.3.18-1~deb7u3
otrs2
Debian:8
 before 3.3.18-1+deb8u4, plus listed versions
3.3.10-13.3.11-13.3.18-1+deb8u13.3.18-1+deb8u23.3.18-1+deb8u3
Show 5 moreShow less
3.3.18-1~deb7u13.3.18-1~deb7u23.3.18-1~deb7u33.3.9-33.3.9-3+deb8u1
3.3.18-1+deb8u4
otrs2
Debian:9
 before 5.0.16-1+deb9u5, plus listed versions
2.0.4p01-102.0.4p01-112.0.4p01-122.0.4p01-132.0.4p01-14
Show 45 moreShow less
2.0.4p01-14.12.0.4p01-152.0.4p01-162.0.4p01-172.0.4p01-182.0.4p01-62.0.4p01-72.0.4p01-82.0.4p01-92.0.99beta1-12.0.99beta1-22.1.1-12.1.3-12.1.4-12.1.4-22.1.5-12.1.5-22.1.5-32.1.6-12.1.7-12.1.7-22.2.0~beta2-12.2.0~beta3-12.2.1-12.2.2-12.2.3-12.2.4-12.2.5-12.2.5-22.2.6-12.2.7-12.2.7-22.2.7-2lenny12.2.7-2lenny22.2.7-2lenny32.2.7-32.3.2-12.3.2-22.3.3-12.3.4-12.3.4-22.3.4-32.3.4-42.3.4-52.3.4-6
5.0.16-1+deb9u5
otrs2
Ubuntu:16.04:LTS
 All versions, plus listed versions
4.0.10-15.0.1-15.0.1-25.0.2-15.0.3-15.0.5-15.0.6-15.0.7-1
 None known

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-17476 is a high vulnerability (CVSS 8.8) in Otrs, published December 20, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.22%, the 82nd percentile. Fixed in otrs2 6.0.3-1.

References

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Left out here: 291 versions. The JSON record has them.

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