Jira Software Data Center and Server update for Jetty
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2017-9735 CVE-2017-7656 CVE-2021-28165 |
| CWE-ID | CWE-208 CWE-444 CWE-400 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Jira Data Center Server applications / Other server solutions Jira Software Client/Desktop applications / Other client software |
| Vendor | Atlassian |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Brute-force attack
EUVDB-ID: #VU9654
Risk: Low
CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-9735
CWE-ID:
CWE-208 - Information Exposure Through Timing Discrepancy
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a brute-force attack.
The vulnerability exists due to a timing channel in util/security/Password.java, which allows a remote attacker to perform a brute-force attack by observing elapsed times before rejection of incorrect passwords.
Install update from vendor's website.
Vulnerable software versionsJira Data Center: 8.20.0 - 9.11.0
Jira Software: 8.20.0 - 9.11.0
External linkshttp://jira.atlassian.com/browse/JSWSERVER-22141
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) HTTP request smuggling attack
EUVDB-ID: #VU13527
Risk: Low
CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-7656
CWE-ID:
CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
Exploit availability: No
DescriptionThe disclosed vulnerability allows a remote attacker to conduct an HTTP request smuggling attack on the target system.
The vulnerability exists due to improper handling of HTTP/0.9 requests. A remote attacker can send a specially crafted HTTP/0.9 request that submits malicious request headers, cause the software and an upstream HTTP agent to misinterpret the boundary of the request and poison the web cache on the system, which could be used to conduct further attacks.
MitigationInstall update from vendor's website.
Vulnerable software versionsJira Data Center: 8.20.0 - 9.11.0
Jira Software: 8.20.0 - 9.11.0
External linkshttp://jira.atlassian.com/browse/JSWSERVER-22148
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Resource exhaustion
EUVDB-ID: #VU51876
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-28165
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when processing large TLS frames. A remote attacker can send specially crafted data to the server, trigger CPU high load and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsJira Data Center: 8.20.0 - 9.11.0
Jira Software: 8.20.0 - 9.11.0
External linkshttp://jira.atlassian.com/browse/JSWSERVER-22145
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
