CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.8 | $0-$5k | 0.00 |
A vulnerability was found in Cyrus IMAP up to 3.0.2. It has been declared as critical. Affected by this vulnerability is an unknown code block of the component Command Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. As an impact it is known to affect integrity, and availability. The summary by CVE is:
Cyrus IMAP before 3.0.3 allows remote authenticated users to write to arbitrary files via a crafted (1) SYNCAPPLY, (2) SYNCGET or (3) SYNCRESTORE command.
The bug was discovered 08/14/2017. The weakness was shared 08/22/2017 (Website). The advisory is shared at lists.fedoraproject.org. This vulnerability is known as CVE-2017-12843 since 08/14/2017. The exploitation appears to be easy. The attack can be launched remotely. The requirement for exploitation is a single authentication. Neither technical details nor an exploit are publicly available.
The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 102613 (Fedora 26 : cyrus-imapd (2017-f8f4cd5b67)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.
Upgrading to version 3.0.3 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (102613).
Product
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.9VulDB Meta Temp Score: 5.8
VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Input validationCWE: CWE-20
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 102613
Nessus Name: Fedora 26 : cyrus-imapd (2017-f8f4cd5b67)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 867773
OpenVAS Name: Fedora Update for cyrus-imapd FEDORA-2017-f8f4cd5b67
OpenVAS File: 🔍
OpenVAS Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: IMAP 3.0.3
Patch: github.com
Timeline
08/14/2017 🔍08/14/2017 🔍
08/20/2017 🔍
08/21/2017 🔍
08/22/2017 🔍
08/22/2017 🔍
08/23/2017 🔍
12/16/2022 🔍
Sources
Advisory: FEDORA-2017-f8f4cd5b67Status: Not defined
Confirmation: 🔍
CVE: CVE-2017-12843 (🔍)
Entry
Created: 08/23/2017 09:13Updated: 12/16/2022 09:48
Changes: 08/23/2017 09:13 (65), 11/09/2019 15:55 (8), 12/16/2022 09:45 (5), 12/16/2022 09:46 (1), 12/16/2022 09:48 (1)
Complete: 🔍
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