A vulnerability classified as critical has been found in Apache Tomcat up to 7.0.98/8.5.49/9.0.29 (Application Server Software). This affects an unknown function of the component FORM Authentication. The manipulation with an unknown input leads to a session fixiation vulnerability. CWE is classifying the issue as CWE-384. 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98 there was a narrow window where an attacker could perform a session fixation attack. The window was considered too narrow for an exploit to be practical but, erring on the side of caution, this issue has been treated as a security vulnerability.

The weakness was shared 12/23/2019 (Website). The advisory is shared at lists.apache.org. This vulnerability is uniquely identified as CVE-2019-17563 since 10/14/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 12/24/2019).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries 153292, 153345, 153567 and 153632 are related to this item.

Productinfo

Type

• Application Server Software

Vendor

• Apache

Name

• Tomcat

Version

• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.0.8
• 7.0.9
• 7.0.10
• 7.0.11
• 7.0.12
• 7.0.13
• 7.0.14
• 7.0.15
• 7.0.16
• 7.0.17
• 7.0.18
• 7.0.19
• 7.0.20
• 7.0.21
• 7.0.22
• 7.0.23
• 7.0.24
• 7.0.25
• 7.0.26
• 7.0.27
• 7.0.28
• 7.0.29
• 7.0.30
• 7.0.31
• 7.0.32
• 7.0.33
• 7.0.34
• 7.0.35
• 7.0.36
• 7.0.37
• 7.0.38
• 7.0.39
• 7.0.40
• 7.0.41
• 7.0.42
• 7.0.43
• 7.0.44
• 7.0.45
• 7.0.46
• 7.0.47
• 7.0.48
• 7.0.49
• 7.0.50
• 7.0.51
• 7.0.52
• 7.0.53
• 7.0.54
• 7.0.55
• 7.0.56
• 7.0.57
• 7.0.58
• 7.0.59
• 7.0.60
• 7.0.61
• 7.0.62
• 7.0.63
• 7.0.64
• 7.0.65
• 7.0.66
• 7.0.67
• 7.0.68
• 7.0.69
• 7.0.70
• 7.0.71
• 7.0.72
• 7.0.73
• 7.0.74
• 7.0.75
• 7.0.76
• 7.0.77
• 7.0.78
• 7.0.79
• 7.0.80
• 7.0.81
• 7.0.82
• 7.0.83
• 7.0.84
• 7.0.85
• 7.0.86
• 7.0.87
• 7.0.88
• 7.0.89
• 7.0.90
• 7.0.91
• 7.0.92
• 7.0.93
• 7.0.94
• 7.0.95
• 7.0.96
• 7.0.97
• 7.0.98
• 8.5.0
• 8.5.1
• 8.5.2
• 8.5.3
• 8.5.4
• 8.5.5
• 8.5.6
• 8.5.7
• 8.5.8
• 8.5.9
• 8.5.10
• 8.5.11
• 8.5.12
• 8.5.13
• 8.5.14
• 8.5.15
• 8.5.16
• 8.5.17
• 8.5.18
• 8.5.19
• 8.5.20
• 8.5.21
• 8.5.22
• 8.5.23
• 8.5.24
• 8.5.25
• 8.5.26
• 8.5.27
• 8.5.28
• 8.5.29
• 8.5.30
• 8.5.31
• 8.5.32
• 8.5.33
• 8.5.34
• 8.5.35
• 8.5.36
• 8.5.37
• 8.5.38
• 8.5.39
• 8.5.40
• 8.5.41
• 8.5.42
• 8.5.43
• 8.5.44
• 8.5.45
• 8.5.46
• 8.5.47
• 8.5.48
• 8.5.49
• 9.0.0
• 9.0.1
• 9.0.2
• 9.0.3
• 9.0.4
• 9.0.5
• 9.0.6
• 9.0.7
• 9.0.8
• 9.0.9
• 9.0.10
• 9.0.11
• 9.0.12
• 9.0.13
• 9.0.14
• 9.0.15
• 9.0.16
• 9.0.17
• 9.0.18
• 9.0.19
• 9.0.20
• 9.0.21
• 9.0.22
• 9.0.23
• 9.0.24
• 9.0.25
• 9.0.26
• 9.0.27
• 9.0.28
• 9.0.29

License

• open-source

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• 🔍
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• 🔍
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